PUBLICATIONS

William C. Keel



Monographs:

3. The Road to Galaxy Formation, 2nd revised edition, Springer-Praxis Publishers, 2007

2. The Sky at Einstein's Feet, Springer-Praxis Publishers, 2005

1. The Road to Galaxy Formation, Springer-Praxis Publishers, 2002


Refereed Journals:

189. The TELPERION Survey for Distant [O III] Clouds around Luminous and Hibernating AGN, William C. Keel, Alexei Moiseev, D.V. Kozlova, A.I. Ikhsanova, D.V. Oparin, R.I. Uklein, A.A. Smirnova, and M.V. Eselevich, MNRAS submitted (2021)

188. Kiloparsec-scale AGN Outflows and Feedback in Merger-Free Galaxies, R. J. Smethurst, B. D. Simmons, A. Coil, C. J. Lintott, W. Keel, K. L. Masters, E. Glikman, G. C. K. Leung, J. Shanahan, I. L. Garland, MNRAS 507, 985 (2021) ( ADS)

187. Predicting the spectrum of UGC 2885, Rubin's Galaxy with machine learning, Benne W. Holwerda, John F. Wu, William C. Keel, Jason Young, Ren Mullins, Joannah Hinz, K.E. Saavik Ford, Pauline Barmby, Rupali Chandar, Jeremy Bailin, Josh Peek, Tim Pickering, Torsten Boeker, ApJ 914, 142 (2021) ( arxiv | ADS)

186. Galaxy Zoo Builder: Morphological Dependence of Spiral Galaxy Pitch Angle, Timothy Lingard, Karen L. Masters, Coleman Krawczyk, Chris Lintott, Sandor Kruk, Brooke Simmons, William Keel, Robert Nichol, Elisabeth Baeten, MNRAS 504, 3364 (2021) ADS | arxiv

185. Pre-processing of Galaxies in the Early Stages of Cluster Formation in Abell 1882 at z=0.139, Sengupta, Aparajita; Keel, William C.; Morrison, Glenn; Windhorst, Rogier A.; Miller, Neal; Smith, Brent, ApJ submitted (2021) (arxiv)

184. Galaxy Zoo DECaLS: Detailed Visual Morphology Measurements from Volunteers and Deep Learning for 314,000 Galaxies Mike Walmsley, Chris Lintott, Tobias Geron, Sandor Kruk, Coleman Krawczyk, Kyle W. Willett, Steven Bamford, William Keel, Lee S. Kelvin, Lucy Fortson, Karen L. Masters, Vihang Mehta, Brooke D. Simmons, Rebecca Smethurst, Elisabeth M. Baeten, Christine Macmillan, MNRAS revised (2021) (arxiv)

183. A Giant Loop of Ionized Gas Emerging From the Tumultuous Central Region of IC 5063, W. Peter Maksym, Guiseppina Fabbiano, Martin Elvis, Luis C. Ho, Tom Oosterloo, Jongzhe Ma, Andrea Travascio, Travis C. Fischer, & William C. Keel, ApJ 917, 85 (2021) (arxiv)| ( ADS)

182. An old stellar population or diffuse nebular continuum emission discovered in Green Pea galaxies, Leonardo Clarke, Claudia Scarlata, Vihang Mehta, William C. Keel, Carolin Cardamone, Matthew Hayes, Nico Adams, Hugh Dickinson, Lucy Fortson, Sandor Kruk, Chris Lintott, & Brooke Simmons, ApJL 912, L22 (2021) (arxiv | ADS)

181. Crepuscular Rays from the Highly Inclined Active Galactic Nucleus in IC 5063, W. Peter Maksym, Judy Schmidt, William C. Keel, Guiseppina Fabbiano, Travis C. Fischer, Joss Bland-Hawthorn, Aaron J. Barth, Martin Elvis, Tom Oosterloo, Luis C. Ho, Minjin Kim, Hyunmo Hwang, and Evan Mayer, ApJL 902, L18 (2020) (arxiv | e-ApJ | ADS)

180. Limits to Rest-Frame Ultraviolet Emission From Far-Infrared-Luminous z ~ 6 Quasar Hosts, M. A. Marshall, M. Mechtley, R. A. Windhorst, S. H. Cohen, R. A. Jansen, L. Jiang, V. R. Jones, J. S. B. Wyithe, X. Fan, N. P. Hathi, K. Jahnke, W. C. Keel, A. M. Koekemoer, V. Marian, K. Ren, J. Robinson, H. J. A. Rottgering, R. E. Ryan Jr., E. Scannapieco, D. P. Schneider, G. Schneider, B. M. Smith, and H. Yan, ApJ submitted (2020) (arxiv)

179. An [O III] search for extended emission around AGN with H I mapping: a distant cloud ionized by Mkn 1, Erin Darnell Knese, William C. Keel, Greg Knese, Vardha N. Bennert, Alexei Moiseev, Aleksandra Grokhovskaya, and Sergei N. Dodonov, MNRAS 496, 1035 (2020) (arxiv | MNRAS)

178. BVRI Photometry of the Classic Type II-P Supernova 2017eaw in NGC 6946: Day 3 to Day 594, Ronald J. Buta and William C. Keel, MNRAS 487, 832 (2019) (ADS)

177. Multimessenger observations of a flaring blazar coincident with high-energy neutrino IceCube-170922A, M.G. Aartsen et al., Science 361, 1378 (2018) (ADS)

176. Galaxy Zoo: Unwinding the Winding Problem Ð Observations of Spiral Bulge Size and Spiral Arm Pitch Suggest Local Spiral Galaxies are Winding, Karen L. Masters, Chris Lintott, Ross E. Hart, Sandor J. Kruk, Rebecca J. Smethurst, Kevin V. Casteels, William C. Keel, Brooke Simmons, Dennis Olivan Stanescu, Jean Tate, and Satoshi Tomi, MNRAS (487, 1808), 2019 (arXiv | ADS)

175. Galaxy Zoo: constraining the origin of spiral arms, Hart, Ross E.; Bamford, Steven P.; Keel, William C.; Kruk, Sandor J.; Masters, Karen L.; Simmons, Brooke D.; Smethurst, Rebecca J. 2018, MNRAS 478, 932 (ADS)

174.Optical Detection of Star Formation in a Cold Dust Cloud in the Counterjet Direction of Centaurus A, William C. Keel, Julie K. Banfield, Anne Medling, and Susan Neff, AJ 157, 66 (2019) (ADS)

173. Joint NuSTAR and Chandra analysis of the obscured quasar in IC 2497 - Hanny's Voorwerp system, Sartori, Lia F.; Schawinski, Kevin; Koss, Michael J.; Ricci, Claudio; Treister, Ezequiel; Stern, Daniel; Lansbury, George; Maksym, W. Peter; Balokovic, Mislav; Gandhi, Poshak; Keel, William C.; Ballantyne, David R., MNRAS 474, 2444 (2018) (ADS)

172. Galaxy Zoo: Morphological Classification of Galaxy Images from the Illustris Simulation, Dickinson, Hugh; Fortson, Lucy; Lintott, Chris; Scarlata, Claudia; Willett, Kyle; Bamford, Steven; Beck, Melanie; Cardamone, Carolin; Galloway, Melanie; Simmons, Brooke; Keel, William; Kruk, Sandor; Masters, Karen; Vogelsberger, Mark; Torrey, Paul; Snyder, Gregory F., ApJ 853, 194 (2018) (ADS)

171. Galaxy Zoo and SPARCFIRE: constraints on spiral arm formation mechanisms from spiral arm number and pitch angles, Hart, Ross E.; Bamford, Steven P.; Hayes, Wayne B.; Cardamone, Carolin N.; Keel, William C.; Kruk, Sandor J.; Lintott, Chris J.; Masters, Karen L.; Simmons, Brooke D.; Smethurst, Rebecca J., MNRAS 472, 2263 (2017) (ADS)

170. AGN photoionization of gas in companion galaxies as a probe of AGN radiation in time and direction, William C. Keel, Vardha N. Bennert, Anna Pancoast, Chelsea E. Harris, Anna Nierenberg, S. Drew Chojnowski, Alexei Moiseev, Dmitry V. Oparin, Chris J. Lintott, Kevin Schawinski, Graham Mitchell & Claude Cornen, MNRAS 483, 4874, 2019 (ADS)

169. Galaxy Zoo: Major Galaxy Mergers Are Not a Significant Quenching Pathway, Weigel, Anna K.; Schawinski, Kevin; Caplar, Neven; Carpineti, Alfredo; Hart, Ross E.; Kaviraj, Sugata; Keel, William C.; Kruk, Sandor J.; Lintott, Chris J.; Nichol, Robert C.; Simmons, Brooke D.; Smethurst, Rebecca J., ApJ 845, 145 (2018) (ADS)

168. Fading AGN Candidates: AGN Histories and Outflow Signatures, William Keel, Chris Lintott, W. Peter Maksym, Vardha Bennert, S. Drew Chojnowski, Alexei Moiseev, Aleksandrina Smirnova, Kevin Schawinski, Lia Sartori, C. Megan Urry, Anna Pancoast, Mischa Schirmer, Bryan Scott, Charles Showley, and Kelsi Flatland, ApJ 835:256, 2017 ( ADS)

167. The Remote Observatories of the Southeastern Association for Research in Astronomy (SARA), Keel, William; Oswalt, Terry; Mack, Peter; Henson, Gary; Hillwig, Todd; Batcheldor, Daniel; Berrington, Robert; De Pree, Chris; Hartmann, Dieter; Leake, Martha; Licandro, Javier; Murphy, Brian; Webb, James; Wood, Matt, PASP 129, 5002, 2017 ( ADS)

166. Green Bean Galaxies: AGN ionization and thermal echoes, and ionization deficits in low redshift Lyman-α blobs, M. Schirmer, N. Levenson, R. Davies, H. Fu, W.C. Keel, S. Malhotra, P. Torrey, V. Bennert, & A. Pancoast, MNRAS 463, 1554, 2016 ( ADS)

165. Primary Black Hole Spin in OJ 287 as Determined by the General Relativity Centenary Flare, M.J. Valtonen et al. ApJ 2016, 819 ( ADS)

164. Extended X-ray emission in the IC 2497 - Hanny's Voorwerp system: energy injection in the gas around a fading AGN, Lia F. Sartori, Kevin Schawinski, Michael Koss, Ezequiel Treister, W. Peter Maksym, William C. Keel, C, Megan Urry, Chris J. Lintott, & O. Ivy Wong, MNRAS 457, 3629 (2016) (ADS)

163. The dependence of the AV prior for SN Ia on host mass and disc inclination, B.W. Holwerda, W.C. Keel, M.A Kenworthy, & K.J. Mack, MNRAS 451, 2390, 2015 ( ADS)

162. Galaxy Zoo: Mergers - Dynamical Models of Interacting Galaxies, Anthony J. Holincheck, John F. Wallin, Kirk Borne, Lucy Fortson, Chris Lintott, Arfon Smith, Steven Bamford, and William C. Keel, MNRAS 459, 720, 2016 ( ADS | arxiv)

161. J1649+26: A Grand-Design Spiral with a Large Double-Lobed Radio Source, Minnie Y. Mao, Frazer Owen, Ryan Duffin, Bill Keel, Mark Lacy, Emmanuel Momjian, Glenn Morrison, Tony Mroczkowski, Susan Neff, Ray P. Norris, Henrique Schmitt, Vicki Toy, Sylvain Veilleux, MNRAS 446, 4176, 2015 (ADS)

160. Galaxy Zoo: CANDELS Barred Disks and Bar Fractions, B. D. Simmons, Thomas Melvin, Chris Lintott, Karen L. Masters, Kyle W. Willett, William C. Keel, R. J. Smethurst, Edmond Cheung, Robert C. Nichol, Kevin Schawinski, Michael Rutkowski, Jeyhan S. Kartaltepe, Eric F. Bell, Kevin R. V. Casteels, Christopher J. Conselice, Omar Almaini, Henry C. Ferguson, Lucy Fortson, William Hartley, Dale Kocevski, Anton M. Koekemoer, Daniel H. McIntosh, Alice Mortlock, Jeffrey A. Newman, Jamie Ownsworth, Steven Bamford, Tomas Dahlen, Sandra M. Faber, Steven L. Finkelstein, Adriano Fontana, Audrey Galametz, N. A. Grogin, Ruth Grutzbauch, Yicheng Guo, Boris Haussler, Kian J. Jek, Sugata Kaviraj, Ray A. Lucas, Michael Peth, Mara Salvato, Tommy Wiklind, Stijn Wuyts, MNRAS 445, 3466 (2014) (ADS)

159. HST Imaging of Fading AGN Candidates I: Host-Galaxy Properties and Origin of the Extended Gas, William C. Keel, W. Peter Maksym, Vardha N. Bennert, Chris J. Lintott, S. Drew Chojnowski, Alexei Moiseev, Alexandrina Smirnova, Kevin Schawinski, C. Megan Urry, Daniel A. Evans, Anna Pancoast, Bryan Scott, Charlie Showley, & Kelsi Flatland AJ, 149, 155 (2015) ( arxiv | ADS)

158. Deep Spectroscopy of the MV~-14.8 Host Galaxy of a Tidal Disruption Flare in A1795, W. Peter Maksym, Melville Ulmer, Kathy Roth, Jimmy Irwin, Renato Dupke, Luis Ho, William Keel, Christophe Adami, MNRAS 444, 866 (2014) (ADS)

157. The Green Valley is a Red Herring: Galaxy Zoo reveals two evolutionary pathways towards quenching of star formation in early- and late-type galaxies. Kevin Schawinski, C. Megan Urry, Brooke D. Simmons, Lucy Fortson, Sugata Kaviraj, William C. Keel, Chris J. Lintott, Karen L. Masters, Robert C. Nichol, Marc Sarzi, Ramin, Skibba, Ezequiel Treister, Kyle W. Willett, O. Ivy Wong, Sukyoung K. Yi, MNRAS 440, 889, 2014. (arxiv | ADS)

156. Spatially-Resolved Spectra of the "Teacup" AGN: Tracing the History of a Dying Quasar, J.P. Gagne, D.M. Crenshaw, S.B. Kraemer, H.R. Schmitt, W.C. Keel, S. Rafter, T.C. Fischer, V.N. Bennert, & K.Schawinski ApJ, 792,72, 2014 ( arxiv | ADS)

155. Galaxy Zoo 2: detailed morphological classifications for 304,122 galaxies from the Sloan Digital Sky Survey, Kyle W. Willett, Chris J. Lintott, Steven P. Bamford, Karen L. Masters, Brooke D. Simmons, Kevin R.V. Casteels, Edward M. Edmondson, Lucy F. Fortson, Sugata Kaviraj, William C. Keel, Thomas Melvoi, Robert C. Nichol, M. Jordan Raddick, Kevin Schawinski, Robert J. Simpson, Ramin A. Skibba, Arfon M. Smith, & Daniel Thomas, MNRAS 435, 2835 (2013) (ADS)

154. The Ultraviolet Attenuation Law in Backlit Spiral Galaxies, William C. Keel, Anna M. Manning, Benne W. Holwerda, Chris J. Lintott, & Kevin Schawinski, AJ 147, 44 (2014) (ADS)

153. The Occulting Galaxy Pair UGC 3995: Dust properties from HST and CALIFA data, B.W. Holwerda & W.C. Keel, A&A 556, 42 (2013) ( arxiv | ADS)

152. Galaxy Zoo: quantifying morphological indicators of galaxy interaction, Kevin R.V. Casteels, Steven P. Bamford, Ramin W. Skibba, Karen L. Masters, Chris J. Lintott, William C. Keel, Kevin Schawinski, Robert C. Nichol, & Arfon Smith, MNRAS 429, 1051 (2013) (ADS)

151. Planet Hunters: A Transiting Circumbinary Planet in a Quadruple Star System, Megan E. Schwamb, Jerome A. Orosz, Joshua A. Carter, William F. Welsh, Debra A. Fischer, Guillermo Torres, Andrew W. Howard, Justin R. Crepp, William C. Keel, Chris J. Lintott, Nathan A. Kaib, Dirk Terrell, Robert Gagliano, Kian J. Jek, Michael Parrish, Arfon M. Smith, Stuart Lynn, Robert J. Simpson, Matthew J. Giguere, and Kevin Schawinski, ApJ 768, 127 (2013) (arxiv)

150. Near-Infrared Imaging of a z=6.42 Quasar Host Galaxy With the Hubble Space Telescope Wide Field Camera 3, Matt Mechtley, Rogier A. Windhorst, Russell E. Ryan, Glenn Schneider, Seth H. Cohen, Rolf A. Jansen, Xiaohui Fan, Nimish P. Hathi, William C. Keel, Anton M. Koekemoer, Huub Rottgering, Evan Scannapieco, Donald P. Schneider, Michael A. Strauss, and Haojing Yan, ApJ 756, L38 (2012) (ADS)

149. The History and Environment of a Faded Quasar: Hubble Space Telecope observations of Hanny's Voorwerp and IC 2497, William C. Keel, Chris J. Lintott, Kevin Schawinski, Vardha N. Bennert, Daniel Thomas, Anna Manning, S. Drew Chojnowski, Hanny van Arkel, and Stuart Lynn, AJ 144, 66 (2012 ) (arxiv | e-AJ)

148. Galaxy Zoo and ALFALFA: Atomic Gas and the Regulation of Star Formation in Barred Disc Galaxies, Karen L. Masters, Robert C. Nichol, Martha P. Haynes, William C. Keel, Chris Lintott, Brooke Simmons, Ramin Skibba, Steven Bamford, Riccardo Giovanelli, & Kevin Schawinski, MNRAS 424, 2108 (2012) (arxiv)

147. Chandra Observations of Galaxy Zoo Mergers: Frequency of Binary Active Nuclei in Massive Mergers, Stacy Teng, Kevin Schawinski, C. Megan Urry, Dan W. Darg, Sugata Kaviraj, Kyuseok Oh, Erin W. Bonning, Carolin N. Cardamone, William C. Keel, Chris J. Lintott, Brooke D. Simmons, & Ezequiel Treister, ApJ 753, 165 (2012) (arxiv | e-ApJ)

146. Galaxy Zoo: The Environmental Dependence of Bars and Bulges in Disc Galaxies, Ramin A. Skibba, Karen L. Masters, Robert C. Nichol, Idit Zehavi, Ben Hoyle, Edward M. Edmondson, Steven P. Bamford, Carolin N. Cardamone, William C. Keel, Chris Lintott, Kevin Schawinski, & Michael J. Williams, MNRAS 423, 1485 (2012) arxiv

145. VLT/VIMOS Observations of an Occulting Galaxy Pair: Redshifts and Effective Extinction Curve, B.W Holwerda, J.J. Dalcanton, W.C. Keel, T. Boeker, & R.S. de Jong, MNRAS 433, 47 (2013) (arxiv

144. Galaxy Zoo: Dust and molecular gas in early-type galaxies with prominent dust lanes, Sugata Kaviraj, Yuan Sen Ting, Martin Bureau, Stanislav S. Shabala, R. Mark Crockett, Joseph Silk, Chris Lintott, Arfon Smith, William C. Keel, Karen L. Masters, Kevin Schawinski & Steven P. Bamford, MNRAS 423, 49 (2012) (ADS)

143. The Galaxy Zoo survey for giant AGN-ionized clouds: past and present black-hole accretion events, William C. Keel, S. Drew Chojnowski, Vardha N. Bennert, Kevin Schawinski, Chris J. Lintott, Stuart Lynn, Anna Pancoast, Chelsea Harris, A.M. Nierenberg, Alessandro Sonnenfeld, & Richard Proctor, MNRAS 420, 878 (2012) | (arxiv | ADS)

142. Galaxy Zoo: A Catalogue of Overlapping Galaxy Pairs for Dust Studies, William C. Keel, Anna M. Manning, Benne W. Holwerda, Massimo Mezzoprete, Chris J. Lintott, Kevin Schawinski, Pamela Gay, & Karen L. Masters, PASP 125, 2 (2013) (arxiv)

141. Broad-Line Reverberation in the Kepler-Field Seyfert Galaxy Zw 229-015, A.J. Barth, M.L. Nguyen, M.A. Malkan, A.V. Filippenko, W. Li, V. Gorjian, M.D. Joner, V.N. Bennert, J. Botyanszki, S.B. Cenko, M. Childress, J.Choi, J.M. Comerford, A. Cucciara, R. da Silva, G. Duchene, M. Fumagalli, M. Ganeshalingam, E.L. Gates, B.F. Gerke, C.V. Griffith, C. Harris, E.G.Hintz, E. Hsiao, M.T. Kandrashoff, W.C. Keel, D. Kirkman, I.K.W. Kleiser, C.D. Laney, J. Lee, L. Lopez, T.B. Lowe, J.W. Moody, A. Morton, A.M. Nierenberg, P. Nugent, A. Pancoast, J. Rex, R.M. Rich, J.M. Silverman, G.H. Smith, A. Sonnenfeld, N. Suzuki, D. Tytler, J.L. Walsh, J.-H. Woo, Y. Yang, C. Zeisse, & B. Zuckerman, ApJ 732, 121 (2011) (ADS)

140. Galaxy Zoo: Building the low-mass end of the red sequence with local post-starburst galaxies, O. Ivy Wong, Kevin Schawinski, Sugata Kaviraj, Karen Masters, Robert Nichol, Chris Lintott, William Keel, Daniel Darg, Steven Bamford, Dan Andreescu, Phil Murray, M. Jordan Raddick, Alex Szalay, Daniel Thomas, & Jan Vandenberg, MNRAS 420, 1684 (2012) (arxiv).

139. Hanny's Voorwerp: evidence for AGN activity and a nuclear starburst in the central regions of of IC 2497, H. Rampadarath, M.A. Garrett, G.I.G. Josza, T. Muxlow, T.A. Oosterloo, Z. Paragi, R. Beswick, H. van Arkel, C. Lintott, W.C. Keel, & K. Schawinski, A&A 517, 8 (2010) ( arXiv | e-A&A | ADS)

138. The sudden death of the nearest quasar, Kevin Schawinski, Daniel A. Evans, Shanil Virani, C. Megan Urry, William C. Keel, Priyamvada Natajan, Chris J. Lintott, Anna Maning, Paolo Coppi, Sugata Kaviraj, Steven P. Bamford, Gyula I.G. Josza, Michael Garrett, Hanny van Arkel, & Pamela Gay, Astrophys. J. Letters 724, L30 (2010) ( arXiv.org | ADS | e-MNRAS | ADS | arXiv)

136. Variability and stability in blazar jets on time scales of years: Optical polarization monitoring of OJ287 in 2005-2009, Villforth, C.; Nilsson, K.; Heidt, J.; Takalo, L. O.; Pursimo, T.; Berdyugin, A.; Lindfors, E.; Pasanen, M.; Winiarski, M.; Drozdz, M.; Ogloza, W.; Kurpinska-Winiarska, M.; Siwak, M.; Koziel-Wierzbowska, D.; Porowski, C.; Kuzmicz, A.; Krzesinski, J.; Kundera, T.; Wu, J.-H.; Zhou, X.; Efimov, Y.; Sadakane, K.; Kamada, M.; Ohlert, J.; Hentunen, V.-P.; Nissinen, M.; Dietrich, M.; Assef, R. J.; Atlee, D. W.; Bird, J.; DePoy, D. L.; Eastman, J.; Peeples, M. S.; Prieto, J.; Watson, L.; Yee, J. C.; Liakos, A.; Niarchos, P.; Gazeas, K.; Dogru, S.; Donmez, A.; Marchev, D.; Coggins-Hill, S. A.; Mattingly, A.; Keel, W. C.; Haque, S.; Aungwerojwit, A.; Bergvall, N. MNRAS 402, 2087 (2010) ( e-MNRAS | ADS | arXiv)

135. Galaxy Zoo: Dust in Spiral Galaxies, Karen L. Masters, Robert Nichol, Steven Bamford, Moein Mosleh, Chris J. Lintott, Dan Andreescu, Edward M. Edmondson, William C. Keel, Phil Murray, M. Jordan Raddick, Kevin Schawinski, Anze Slosar, Alexander S. Szalay, Daniel Thomas, & Jan Vandenberg, MNRAS 404, 792 (2010) ( e-MNRAS | ADS | arXiv)

134. Galaxy Zoo: the Fundamentally Diffferent Co-Evolution of Supermassive Black Holes and their Early- and Late-Type Host Galaxies, Kevin Schawinski, C. Megan Urry, Shanil Virani, Paolo Coppi, Steven Bamford, Ezequiel Treister, Chris J. Lintott, Marc Sarzi, William C. Keel, Sugata Kaviraj, Carolin N. Cardamone, Dan Andreescu, Phil Murray, Robert C.Nichol, M. Jordan Raddick, Anze Slosar, Alex S. Szalay, Daniel Thomas, & Jan Vandenberg, ApJ 711, 284 (2010) ( e-ApJ | ADS | arXiv)

133. Galaxy Zoo Green Peas: Discovery of A Class of Compact Extremely Star-Forming Galaxies, Cardamone, Carolin N., Schawinski, Kevin, Sarzi, Marc, Bamford, Steven P., Bennert, Nicola, Urry, C. M., Lintott, Chris, Keel, William C., Parejko, John, Nichol, Robert C., Thomas, Daniel, Andreescu, Dan, Murray, Phil, Raddick, M. Jordan, Slosar, Anze, Szalay, Alex & VandenBerg, Jan, MNRAS 399, 1191 (2009) ( e-MNRAS | ADS | arXiv)

132. Revealing Hanny's Voorwerp: radio observations of IC 2497, G. I. G. Jozsa, M. A. Garrett, T. A. Oosterloo, H. Rampadarath, Z. Paragi, H. van Arkel, C. Lintott, W. C. Keel, K. Schawinski, & E. Edmondson, A&A, 500, L33 (2009) ( e-A&A | ADS | arXiv)

131. The Disappearance of Lyman α Blobs: a GALEX Search at z=0.8, W.C. Keel, R.E. White III, S.C. Chapman, and R.A. Windhorst (Astron. J. 138, 986 ( e-AJ | ADS | arXiv)

130. An extended dust disk in a spiral galaxy: an occulting galaxy pair in ANGST, B.W. Holwerda, W.C. Keel, B. Williams, J.J. Dalcanton, & R.S. de Jong, AJ 137, 3000 (2009)) (astro-ph | e-AJ | ADS)

129. Galaxy Zoo: 'Hanny's Voorwerp', a quasar light echo?, Chris J. Lintott, Kevin Schawinski, William Keel, Hanny van Arkel, Edward Edmondson, Daniel Thomas, Nicola Bennert, Daniel J.B. Smith, Peter D. Herbert, Matt J. Jarvis, Dan Andreescu, Steven P. Bamford, Kate Land, Phil Murray, Robert C. Nichol, M. Jordan Raddick, Anze Slosar, Alex Szalay, & Jan Vandenberg, MNRAS 399, 129 (2009) (ADS | arxiv.org | e-MNRAS)

128. Spiral Disk Opacity from Occulting Galaxy Pairs in the Sloan Digital Sky Survey, B.W. Holwerda, W.C. Keel, and A. Bolton, Astronomical Journal 134, 2385 (2007). (astro-ph | e-AJ | ADS)

127. Surface Brightness Profiles of Composite Images of Compact Galaxies at z ~ 4-6 in the HUDF: A Possible Technique to Constrain Dynamical Ages of Young Galaxies, N.P. Hathi, R.A. Jansen, R.A. Windhorst, S.H. Cohen, W.C. Keel, M.R. Corbin, & R.E. Ryan, Jr., AJ 135, 156 (2007) (astro-ph | e-AJ | ADS)

126. The Distribution and Reddening Law of Dust in Spiral Bulges and Elliptical Galaxies, William C. Keel and Sergiy O. Vasylyev, Astronomical Journal (submitted).

125. The Nature of Optical Features in the Inner Region of the 3C 48 Host Galaxy, Alan Stockton, Gabriela Canalizo, Hai Fu, & William Keel, Astrophysical Journal, 659, 195, 2007. ( astro-ph | e-ApJ | ADS)

124. The Spiral Host Galaxy of the Double Radio Source 0313-192, William C. Keel, Raymond E. White III, Frazer N. Owen, & Michael J. Ledlow, AJ 132, 2233 (2006) ( e-AJ | ADS | astro-ph)

123. Stellar Abundances and Molecular Hydrogen in High-Redshift Galaxies - the Far-Ultraviolet View, William C. Keel, AJ 131, 2755 (2006) (astro-ph | ADS | e-AJ)

122. The November 2005 Outburst in OJ 287 and the Binary Black Hole Model, M.J. Valtonen, K. Nilsson, A. Sillanpaa, L.O. Takalo, H.J. Lehto, W.C. Keel, S. Haque, D. Cornwall, & A. Mattingly, ApJ Letters 643, L9 (2006) (ADS | e-ApJ)

121. A Deep Radio Survey of A2125 III. The Cluster Core: Merging and Stripping, Frazer N. Owen, W.C. Keel, Q.D. Wang, M.J. Ledlow, & G.E. Morrison, AJ 131, 1974 (2006) ( astro-ph | ADS | e-AJ)

120. Optical and Near-Infrared Integral Field Spectroscopy of the SCUBA Galaxy N2-850.4, A.M. Swinbank, Ian Smail, R.G. Bower, C. Borys, S.C. Chapman, A.W. Blain, R.J. Ivison, S. Ramsey Howat, W.C. Keel, & A.J. Bunker, MNRAS 359, 401 (2005) (astro-ph) | e-MNRAS | ADS)

119. An Atlas of Warm AGN and Starbursts from the IRAS Deep Fields, William C. Keel, Bryan K. Irby, Alana May, George K. Miley, Daniel Golombek, M.H.K. de Grijp, and Jack F. Gallimore, Astrophys. J. Suppl. 158, 139 (2005) ( astro-ph | ADS | e-ApJS) | Online data

118. Escape of Lyman a Emission in the Starburst Galaxy Markarian 357 - a Wind's Far Side, William C. Keel, Astron. J.129, 1863 (2005) ( astro-ph | e-AJ | ADS).

117. A Deep Radio Survey of Abell 2125 II: Accelerated Galaxy Evolution during a Cluster-Cluster Merger, Frazer N. Owen, M. J. Ledlow, W. C. Keel, Q. D. Wang & G. E. Morrison, Astron. J. 129, 31 (2005). (astro-ph | e-AJ | ADS)

116. A Deep Radio Survey of Abell 2125 I: Radio, Optical, and Near-IR Observations, Frazer N. Owen, W. C. Keel, M. J. Ledlow, G. E. Morrison & R. A. Windhorst, Astron. J. 129, 26 (2005). (astro-ph | e-AJ | ADS)

115. The Rest-frame Optical Spectra of SCUBA galaxies, A.M. Swinbank, Ian Smail, S.C. Chapman, A.W. Blain, R.J. Ivison, & W.C. Keel, ApJ 617, 64 (2004) ( astro-ph | e-ApJ | ADS)

114. ISO Observations of the 53W002 Group at 6.7mm: In Search of the Oldest Stellar Populations at z=2.4, William C. Keel, Wentao Wu, Paul P. van der Werf, Rogier A. Windhorst, James S. Dunlop, Stephen A. Eales, Ian Waddington, & Martha Holmes, PASP 116, 712 (2004) ( astro-ph | e-PASP | ADS)

113. Chandra Detection of Proto-Cluster Galaxies at z=2.4 and the Nature of Lyman a Blobs, Raymond E. White III, William C. Keel, & Rogier A. Windhorst, Astrophys. J. Lett., submitted.

112. Far-Ultraviolet Spectroscopy of Star-Forming Regions in Nearby Galaxies: Stellar Populations and Abundance Indicators, William C. Keel, Jay B. Holberg & Patrick M. Treuthardt, AJ 128, 211 (2004) ( astro-ph | ADS | e-AJ)

111. The Dynamics of A2125, Neal A. Miller, Frazer N. Owen, John M. Hill, William C. Keel, Michael A. Ledlow, & William R. Oegerle, Astrophys. J. 613, 841 (2004) ( astro-ph | e-ApJ | ADS)

110. Ongoing Mass Transfer in the Interacting Galaxy Pair NGC 1409/10, William C. Keel, Astronomical Journal,127, 1325 (2004) ( astro-ph | ADS | e-AJ).

109. Massive Star Clusters in Ongoing Galaxy Interactions - Clues to Cluster Formation, William C. Keel and Kirk D. Borne, AJ, 126, 1257 (2003) ( e-AJ | astro-ph | ADS)

108. Radio-Selected Galaxies in Very Rich Clusters at z< 0.25: I. Multi-Wavelength Observations and Data Reduction Techniques, G. E. Morrison, F. N. Owen, M. J. Ledlow, W. C. Keel, J. M. Hill, W. Voges, and T. Herter, ApJSuppl 146, 267 (2003) ( astro-ph | e-ApJS | ADS)

107. The Infrared Counterparts of the Optically Unidentified CDF-S 1-Ms Sources, Haojing Yan, Rogier A. Windhorst, Huub J.A. Röttgering, Seth H. Cohen, Stephen C. Odewahn, Scott C. Chapman, & William C. Keel, ApJ 585, 67 (2003) ( e-ApJ | astro-ph | ADS)

106. A SCUBA Galaxy in the Protocluster around 53W002 at z=2.4, I. Smail, R.J. Ivison, D.G. Gilbank, J.S. Dunlop, W.C. Keel, K. Motohara, & J.A. Stevens, ApJ 583, 551 (2002) ( astro-ph | e-ApJ | ADS)

105. The Diversity of Extremely Red Objects, Ian Smail, F.N. Owen, G.E. Morrison, W.C. Keel, R.J. Ivison, and M.J. Ledlow, ApJ, 581, 844 (2002) ( e-ApJ | astro-ph | ADS)

104. Gemini Multi-Object Spectrograph Observations of SCUBA Galaxies Behind A851, M.J. Ledlow, Ian Smail, F.N. Owen, W.C. Keel, R.J. Ivison, and G.E. Morrison, ApJ Letters 577, L89 (2002) ( ADS | e-ApJL).

103. Active Nuclei and Star-Forming Objects at z>2: Metallicities, Winds, and Formation Histories, William C. Keel, Wentao Wu, Ian Waddington, Rogier A. Windhorst, and Sebastian M. Pascarelle, AJ, 123, 3041 (2002). (ADS | e-AJ)

102. A Simple Prediction on the Surface Density of Galaxies at z ~ 6, Haojing Yan, Rogier A. Windhorst, Stephen C. Odewahn, Huub J.A. Röttgering, and William C. Keel, ApJ 580, 725 (2002) (astro-ph | ADS | e-ApJ)

101. Seeing Galaxies though Thick and Thin. IV. The Superimposed Spiral Galaxies of NGC 3314, W.C. Keel and R.E. White, III., AJ 122, 1369 (2001) ( ADS | e-AJ)

100. Ultraviolet Signposts of Resonant Dynamics in the Starburst-Ringed Sab Galaxy, M94 (NGC 4736), William H. Waller, Michael N. Fanelli, William C. Keel, Ralph Bohlin, Nicholas R. Collins, Barry F. Madore, Pamela M. Marcum, Susan G. Neff, Robert W. O'Connell, Joel D. Offenberg, Morton S. Roberts, Andrew M. Smith, Theodore P. Stecher, AJ 121, 1395 (2001). (ADS | e-ApJ)

99. Seeing Galaxies Through Thick & Thin. III. HST Imaging of the Dust in Backlit Spiral Galaxies , William C. Keel and Raymond E. White, III, AJ 121, 1442 (2001) ( ADS | e-ApJ)

98. GRB 991216 Joins the Jet Set: Discovery and Monitoring of Its Optical Afterglow, J.P. Halpern, R. Uglesich, N. Mirabel, S. Kassin, J. Thorstensen, W.C. Keel, A Diercks, F. Harrison, J. Mattox, & M. Eracleous, ApJ, 534, 697 (2000). ( ADS | e-ApJ).

97. Evidence for Large-Scale Structure at z~2.4 From Lyman alpha Imaging, Willam C. Keel, Seth Cohen, Rogier A. Windhorst, and Ian Waddington, AJ 118, 2547 (1999). ( ADS | e-AJ)

96. Dust in Spiral Galaxies: Comparing Emission and Absorption to Constrain Small-Scale and Very Cold Structures, Donovan L. Domingue,, William C. Keel, Stuart D. Ryder, and Raymond E. White, III, AJ 118, 1542 (1999). ( ADS | e-AJ | Erratum)

95. Cluster Mergers as Triggers of Star Formation and Radio Emission: A Comparative Study of the Rich Clusters A2125 and A2645, Frazer N. Owen, Michael J. Ledlow, William C. Keel, and Glenn E. Morrison, AJ, 118, 633 (1999). ( ADS | e-AJ)

94. Seeing Galaxies Through Thick and Thin: II. Direct Measures of Extinction in Spiral Disks Through Spectroscopy of Overlapping Galaxies, Donovan Domingue, William C. Keel, and Raymond E. White III, ApJ, 545, 171 (2000). ( ADS | e-ApJ)

93. Compact Lyman-alpha Emitting Candidates at z=2.4 in Deep Medium-band HST WFPC2 Images, Sebastian M. Pascarelle, Rogier A. Windhorst, and William C. Keel, AJ, 116, 2659 (1998). ( ADS | e-AJ)

92. A Nearby Galaxy in the Deep Ultraviolet: Voyager 2 Observations of M33 from Lyman alpha to the Lyman Limit, William C. Keel, ApJ 506, 712 (1998). ( ADS | e-ApJ)

91. Deep HST Galaxy and Pair Counts as Constraints on Merging History, Wentao Wu and William C. Keel, AJ 116, 1513 (1998). ( ADS | e-AJ)

90. CO (J=3-2) Emission in the Radio Galaxy 53W002 at z=2.394, N.Z. Scoville, M.S. Yun, R.A. Windhorst, W.C. Keel, and L. Armus, ApJLett 485, L21 (1997). ( ADS | e-ApJ)

89. An Unusual Radio Galaxy in Abell 428: A Powerful FR I Source in a Spiral Host?, Michael J. Ledlow, Frazer N. Owen, and William C. Keel, Astrophys. J., 495, 227 (1998). ( ADS | e-ApJ)

88. Gravitational Interactions and Ram-Pressure Stripping in Poor Groups, David S. Davis, William C. Keel, John S. Mulchaey, and Patricia A. Henning AJ 114, 613 (1997). ( ADS)

87. Seeing Galaxies through Thick and Thin: I. Optical Opacity Measures in Overlapping Galaxies, Raymond E. White, III, William C. Keel and Christopher J. Conselice, ApJ 542, 761 (2000). ( ADS | e-ApJ)

86. Sub-galactic clumps at a redshift of 2.39 and implications for galaxy formation, S.M. Pascarelle, R.A. Windhorst, W.C. Keel, and S.C. Odewahn, Nature 383, No. 6595 , 45-50 (1996)

85. Automated Morphological Classification in a deep HST BVI Field: Evolving and Non-evolving Faint Galaxy Populations, Stephen C. Odewahn, Rogier A. Windhorst, Simon P. Driver, and William C. Keel, ApJL 472, L13 (1996). ( ADS | e-AJ)

84. A supergiant-dominated starburst in the nucleus of NGC 4569, PASP 108, 917 (1996). ( ADS)

83. Rotation Curves and Velocity Measures for Spiral Galaxies in Pairs, Astrophys. J. Supplement 106, 27 (1996). ( ADS)

82. Deep HST/PC imaging of a young "elliptical" radio galaxy at z=2.390, Rogier A. Windhorst, William C. Keel, and Sam Pascarelle, ApJ Letters 494, L27 (1998). ( ADS | e-ApJ)

81. The Serendipitous Discovery of a Group or Cluster of Young Galaxies at z=2.40 in Deep HST WFPC2 Images, S. M. Pascarelle, R. A. Windhorst, S.P.Driver, E. J. Ostrander, and W. C. Keel, ApJ Lett. 456, L21 (1996). ( ADS | e-ApJ)

80. Seyfert Galaxies with Companions: Orbital and Kinematic Clues to AGN Triggering, Astron. J. 111, 696, (1996). ( ADS)

79. The Local Merger Rate of Disk Galaxies, William C. Keel and Wentao Wu, Astron. J. 110, 129 (1995). ( ADS)

78. The Morphological Mix of Field Galaxies to mI = 24.25 Magnitudes (bj ~ 26 Magnitudes) from a Deep HST WFPC2 Image, Simon P. Driver, Rogier A. Windhorst, Eric J. Ostrander, William C. Keel, Richard E. Griffiths, and Kavan U. Ratnatunga, Ap.J. Lett. 449, L23 (1995). ( ADS | e-ApJ)

77. Optical Spectroscopy of Candidate Hot Spots in Radio Galaxies and Quasars, William C. Keel and Paul Martini, Astron. J. 109, 2305 (1995). ( ADS)

76. Optical Spectroscopy of Radio Galaxies in Abell Clusters II. BL Lacs and FR I Unification, Frazer N. Owen, Michael J. Ledlow, and William C. Keel, Astron. J. 111, 53 (1996). ( ADS)

75. Faint B3 Radio Galaxies: Luminosity versus Evolution Effects, Frazer N. Owen and William C. Keel, Astron. J. 109, 486 (1995). ( ADS)

74. Optical Spectroscopy of Radio Galaxies in Abell Clusters I. Redshifts and Emission-Line Properties, Frazer N. Owen, Michael J. Ledlow, and William C. Keel, Astron. J. 109, 14 (1995). ( ADS)

73. Mass Transfer and Star Formation in the Early-Type Galaxy of a Mixed Pair, AM 0327-285, D.F. de Mello, W.C. Keel, J.W. Sulentic, R. Rampazzo, E. Bica, & R.E. White III, Astron. Astrophys. 297, 331 (1995). ( ADS)

72. Warm IRAS Sources from the Point-Source Catalog - IV. Extended Optical Line Emission, G.C. Fehmers, M.H.K. de Grijp, G.K. Miley, and W.C. Keel, Astron. Astrophys. Suppl. 108, 61 (1994). (ADS)

71. Multiple High-Velocity Emission-Line Systems in the E+S Pair Karachentsev 29, Paolo Marziani, William C. Keel, Deborah Dultzin-Hacyan, and Jack W. Sulentic, Astrophys. J. 435, 668 (1994). (ADS)

70. Galaxy Pairs in Deep HST Fields: Evidence for Evolution in the Galaxy Merger Rate, Jordan M. Burkey, William C. Keel, Rogier A. Windhorst, and Barbara E. Franklin, ApJL 429, L13 (1994). (ADS)

69. Deep HST/WFC Imaging of Distant Radio and Field Galaxies, Rogier A. Windhorst, J.M. Gordon, D.F. Mathis, L.W. Neuschaefer, S.M. Pascarelle, P.C. Schmidtke, A.J. Ferro, William C. Keel, and J.M. Burkey, Astrophys. J. 435, 577 (1994). (ADS)

68. Kinematic Regulation of Star Formation in Interacting Galaxies, Astron. J. 106, 1771 (1993). (ADS)

67. Warm IRAS Sources from the Point-Source Catalog - III. Emission-Line Properties, Correlations, and AGN Unified Models, W.C. Keel, M.H.K. de Grijp, G.K. Miley, and W. Zheng, Astron. Astrophys. 283, 791 (1994). (ADS)

66. Pairing Statistics for Infrared-Luminous Galaxies, J.F. Gallimore and W.C. Keel, Astron. J. 106, 1337 (1993). (ADS)

65. Extinction and the Wavelength-Dependent Positions of the Nuclei of NGC 6240, H. Schulz, J.W. Fried, S. Roeser, and W.C. Keel, Astron. Astrophys. 277, 416 (1993). (ADS)

64. Deep Hubble Space Telescope Imaging of 53W044: an S0 Radio Galaxy at z=0.311, William C. Keel and Rogier A. Windhorst, Astron. J. 106, 455 (1993). (ADS)

63. The Dynamic Interstellar Medium in NGC 4438, William C. Keel and Ann E. Wehrle, Astron. J. 106, 236 (1993). (ADS)

62. Deep Hubble Space Telescope Imaging of a Compact Radio Galaxy at z=2.390, Rogier A. Windhorst, Douglas S. Mathis, and William C. Keel, Astrophys.J. Lett. 400, L1 (1992). (ADS)

61. Direct Measurement of the Optical Depth in a Spiral Galaxy, Raymond E. White III and William C. Keel, Nature 359, 129 (1992).

60. A Simulation Atlas of Tidal Features in Galaxies, Sethanne Howard, William C. Keel, Gene Byrd, and Jordan Burkey, Astrophys. J. 417, 502 (1993). (ADS)

59. Pairing Properties of Markarian Starburst Galaxies, William C. Keel and E.T.M. van Soest, Astron. Astrophys. Suppl. 94, 553 (1992). (ADS)

58. Extranuclear High-Excitation Gas in the Starburst Galaxy NGC 2782, Berto Boer, Hartmut Schulz, and William C. Keel, Astron. Astrophys. 260, 67 (1992). (ADS)

57. The Current Ability of HST to Reveal Morphological Structure in Medium-Redshift Galaxies, I.R. King, S.A. Stanford, P. Seitzer, M.A. Bershady, W.C. Keel, D.C. Koo, N. Weir, S. Djorgovski, and R.A. Windhorst, Astron. J. 102, 1553 (1991). (ADS)

56. A Simple, Photometrically Accurate Algorithm for Deconvolution of Optical Images, Publ. Astron. Soc. Pacific 103, 723 (1991). (ADS | FORTRAN source code)

55. Dynamical Segregation of Direct and Retrograde Orbits in Binary Disk Galaxies, Astrophys.J. Lett. 375, L5 (1991) (ADS)

54. Warm IRAS Sources. II. Optical Spectroscopy of Objects from the Point-Source Catalog, M.H.K. de Grijp, G.K. Miley, W.C. Keel, P. Goudfrooij, and J. Lub, Astron. Astrophys. Suppl. 96, 389 (1992). (ADS | ASCII object table)

53. The Ultraviolet Spectra of Nearby Radio Galaxies, William C. Keel and Rogier A. Windhorst, Astrophys. J. 383, 135, (1991). (ADS)

52. The Nature of the Optical "Jets" in the Spiral Galaxy NGC 1097, Ann E. Wehrle, William C. Keel, and Dayton L. Jones AJ 114, 115 (1997). ( ADS)

51. Fe II Emission and Anisotropy in Broad-Line Regions, Wei Zheng and William C. Keel, Astrophys. J. 382, 121 (1991). (ADS)

50. Shock Excitation, Nuclear Activity, and Star Formation in NGC 6240, Astron. J. 100, 356 (1990). (ADS)

49. Environmental Impact on the Nuclear Radio Activity in Spiral Galaxies, E. Hummel, J.M. van der Hulst, R.C. Kennicutt, Jr., and W.C. Keel, Astron. Astrophys., 236, 333 (1990). (ADS)

48. Detection of Large Faraday Rotation in the Inner 2 Kpc of M87, Frazer N. Owen, Jean A. Eilek, and William C. Keel, Astrophys. J. 362, 449 (1990). (ADS)

47. Long-Slit Spectroscopy of 3C 31, 3C 75, 3C 465, NGC 1265, and Cygnus A, Frazer N. Owen, Christopher P. O'Dea, and William C. Keel, Astrophys. J. 352, 44 (1990). (ADS)

46. Nuclear Outflow from the Edge-On Galaxy NGC 3628, G. Fabbiano, T. Heckman, and W.C. Keel, Astrophys. J. 355, 442 (1990). (ADS)

45. The Active Nucleus of M81 and its History, Astron.J. 98, 195 (1989). (ADS)

44. High-Resolution Observations of the Multicomponent Nucleus of NGC 5929, Andrew S. Wilson and William C. Keel, Astron.J. 98, 1581 (1989). (ADS)

43. A Spiral Galaxy at z=0.366 Which Overlaps the Image of the Quasar 4C 39.47, Paul Hintzen, W. Romanishin, Craig Foltz, and William Keel, Astrophys. J. Lett. 377, L5 (1989). (ADS)

42. A Comparison of the Physical Conditions in Nuclear, "Hot-Spot", and Disk H II Regions, R.C. Kennicutt, Jr., W.C. Keel, and C.A. Blaha, Astron. J. 97, 1022 (1989). (ADS)

41. New Active Galactic Nuclei from the IRAS Deep Fields, W.C. Keel, M.H.K. de Grijp, and G.K. Miley, Astron. Astrophys. 203, 250 (1988). (ADS)

40. Jets and Loops from the Nucleus of NGC 2655, W.C. Keel and E. Hummel, Astron. Astrophys. 194,90 (1988). (ADS)

39. The Optical Continua of Extragalactic Radio Jets, Astrophys. J. 329,532 (1988). (ADS)

38. The Properties and Environment of the Giant, Infrared-Luminous Galaxy IRAS 09104+4109, S.G. Kleinmann, D. Hamilton, W.C. Keel, C.G. Wynn-Williams, S.A. Eales, E.E. Becklin, and K.D. Kuntz, Astrophys. J. 328, 161 (1988). (ADS)

37. The Effects of Interactions on Spiral Galaxies.II. Integrated Star-Formation Rates, R.C. Kennicutt, Jr., K.A. Roettiger, W.C. Keel, J.M. van der Hulst, and E. Hummel, Astron. J. 93, 1011 (1987). (ADS)

36. The Host Galaxy of Markarian 231, D.O. Hamilton and W.C. Keel, Astrophys. J. 321, 211 (1987). (ADS)

35. The Effects of Interactions on Spiral Galaxies. III. A Radio Continuum Survey of Galactic Nuclei at 1.49 GHz, E. Hummel, J.M. van der Hulst, W.C. Keel, and R.C. Kennicutt, Jr., Astron. Astrophys. Suppl. 70, 517 (1987). (ADS)

34. The Stellar Population in the Wolf-Rayet Knot in NGC 5430, Astron. Astrophys. 172, 43 (1987). (ADS)

33. Circumnuclear Star Formation in the Central Region of the Barred Spiral Galaxy NGC 1097, E. Hummel, J.M. van der Hulst, and W.C. Keel, Astron. Astrophys. 172, 32 (1987). (ADS)

32. The Absolute Magnitude of the Flare Star AZ Cancri, C. Dahn, R. Green, W. Keel, D. Hamilton, V. Kallorakal, and J. Liebert, Inf. Bull. Variable Stars no. 2976 (1985). (ADS)

31. Ultraviolet Spectrophotometry of Three LINERs, R.W. Goodrich and W.C. Keel, Astrophys. J. 305, 148 (1986). (ADS)

30. Dual Emission-Line Regions in the Seyfert Galaxy NGC 5929, Nature 318, 43 (1985).

29. Recognition and Classification of Optical Jets in Galaxies, Astron. J. 90, 2207 (1985). (ADS)

28. II Zw 23 - A Galaxy in Formation?, Astron. Astrophys. 202, 41 (1988). (ADS)

27. The Interacting Spiral Galaxy NGC 5395, N.A. Sharp and W.C. Keel, Astron. J. 90, 469 (1985). (ADS)

26. Two Active Galaxies with Tidal Tails and Companions, Astron. J. 90, 1449 (1985). (ADS)

25. The Jet of PKS0521-36: An Aging Counterpart of M87?, Astrophys. J. 302, 247 (1986). (ADS)

24. A Radio-Quiet Emission-Line Jet in the Type 2 Seyfert Galaxy NGC 7682, Astron. J. 90, 577 (1985). (ADS)

23. The Effects of Interactions on Spiral Galaxies.I. Nuclear Activity and Star Formation, W.C. Keel, R.C. Kennicutt, Jr., J.M. van der Hulst, and E. Hummel, Astron. J. 90, 708 (1985). (ADS)

22. Optical Properties of Spiral Galaxies with Strong Nuclear Radio Sources: Active Nuclei, Starbursts, and Composite Objects, Astrophys. J. 282, 75 (1984). (ADS)

21. Induced Nuclear Emission-Line Activity in Interacting Spiral Galaxies, R.C. Kennicutt, Jr. and W.C. Keel, Astrophys. J. Lett. 279, L5 (1984). (ADS)

20. Very Low Luminosity Active Galaxies and the X-ray Background, M. Elvis, A. Soltan, and W.C. Keel, Astrophys. J. 283, 479 (1984). (ADS)

19. Optical Spectrophotometry of the M87 Jet and Its Environs, Astrophys. J. 279, 550 (1984). (ADS)

18. Dust in Backlit Galaxies: Properties of the Foreground Systems in NGC 3314 and NGC 1275, Astron. J. 88, 1579 (1983). (ADS)

17. Arp 102B: A New and Unusual Broad-Line Galaxy, J. Stauffer, R. Schild and W.C. Keel, Astrophys. J. 270, 465 (1983). (ADS)

16. The Nature of the Ionizing Source of the Nuclear Gas in NGC 1052, W.C. Keel and J.S. Miller, Astrophys. J. Lett. 266, L89 (1983). (ADS)

15. Spectroscopic Evidence for Activity in the Nuclei of Normal Spiral Galaxies, Astrophys. J. 269, 466 (1983). (ADS)

14. The Distribution of Ionized Gas in the Nuclei of Spiral Galaxies, Astrophys. J. 268, 632 (1983). (ADS)

13. An H-alpha-[N II] Survey of the Nuclei of Spiral Galaxies, Astrophys. J. Suppl. 52, 229 (1983). (ADS)

12. Wolf-Rayet Stars and an Extraordinary Star-Forming Region in the Barred Spiral Galaxy NGC 5430, Publ. Astron. Soc. Pacific 94, 765 (1982). (ADS)

11. X-Ray, Optical, and Radio Properties of Quasars, G.R. Blumenthal, W.C. Keel, and J.S. Miller, Astrophys. J. 257, 499 (1982). (ADS)

10. Observational Tests of QSO Amplification by Condensed Objects in Galactic Halos, Astrophys. J. (Lett.) 259, L1 (1982). (ADS)

9. The Nature of the Light Variations in the Double QSO Q0957+561, Astrophys. J. 255, 20 (1982). (ADS)

8. The Structure of Radio Emission in the Inner Few Hundred Parsecs of Spiral Galaxies, J.M. van der Hulst, P.C. Crane, and W.C. Keel, Astron. J. 86, 1175 (1981). (ADS)

7. Variability of the Double Quasar Q0957+561A,B, J.S. Miller, R.R.J. Antonucci, and W.C. Keel, Nature 289, 153 (1981).

6. Inclination Effects on the Recognition of Seyfert Galaxies, Astron. J. 85, 198 (1980). (ADS)

5. A Survey of Bright Galactic Nuclei, W.C. Keel and D.W. Weedman, Astron. J. 83, 1 (1978). (ADS)

4. The 8 April 1976 (U.T.) Occultation of Epsilon Geminorum by Mars, D.S. Hall, D.O. Hamilton, A.M. Heiser, and W.C. Keel, Acta Astron. 27, 293 (1977). (ADS)

3. The Recent Behavior of the Period of U Cephei, D.S. Hall and W.C. Keel, Acta Astron. 27, 167 (1977). (ADS)

2. A Period Study for RZ Cassiopeiae, D.S. Hall, W.C. Keel, and G. Neuhaus, Acta Astron. 26, 239 (1976). (ADS)

1. A Visual Light Curve of EG Cephei, B. Keel, R. Montle, and D.S. Hall, J. Am. Assoc. Variable Star Observers 2, 23 (1973). (ADS)



Papers in Published Conference Proceedings:

56. What can the occult do for you?, B.W. Holwerda & W.C. Keel, IAU Symp. 321, "Formation and evolution of galaxy outskirts", p. 248 (2017) ( ADS)

55. Probing quasar shutdown timescales with Hanny's Voorwerp, Daniel A. Evans, Kevin Schawinski, Shanil Virani, C. Megan Urry, C. Megan William C. Keel, Priyamvada Natarajan, Chris J. Lintott, Anna Manning, Anna Paolo Coppi, Sugata Kaviraj, Steven P. Bamford, Gyula I.G. Józsa, Michael Garrett, Hanny van Arkel, Pamela Gay, & Lucy Fortson, in SUZAKU 2011: Exploring the X-ray Universe: Suzaku and Beyond. AIP Conference Proceedings, 1427, 193 (2012) ADS

54. Hanny's Voorwerp: a nuclear starburst in IC2497, M.A. Garrett, H.A. Rampadarath, G.I.G. Josza, T.W.B. Muxlow, T.A. Oosterloo, Z. Paragi, R. Beswick, H. van Arkel, K. Schawinski, & W.C. Keel, 10th EVN , Proc. Sci. (arXiv)

53. Distributions of H II Regions in Interacting Galaxies , William C. Keel & Lisa M. Frattare, in Galaxy Wars: Stellar Populations and Star Formation in Interacting Galaxies, eds. B.J. Smith, N. Bastian, J. Higdon, & S. Higdon, ASP Conf. Series, vol. 423, p. 293 (2010).

52. Minor mergers, interstellar matter, and the growth of galaxy disks, W.C. Keel, in Formation and Evolution of Galaxy Disks, eds. J. Funes, S.J. & E. M. Corsini, ASP Conference Series, vol. 396, 243 (2008).

51. Structure and Evolution of the Opacity of Spiral Disks, B.W. Holwerda, R.A. Gonzalez, W.C. Keel, D. Calzetti, R.J. Allen, & P.C. van der Kruit, in Formation and Evolution of Galaxy Disks, eds. J. Funes, S.J. & E. M. Corsini, ASP Conference Series 396,123 (2008) (astro-ph)

50. Two Interesting Cases of Oddball AGN, M.J. Ledlow, F.N. Owen, & W.C. Keel, in Proc. IAU 222, ed. T. Storchi-Bergmann et al., Cambridge Journals, p. 453 (2004)

49. Galaxy Cluster Formation from the Large-Scale Structure: A Case Study of the Abell 2125 Complex at z=0.247, Q. Daniel Wang, Frazer Owen, Michael Ledlow, and William Keel, in Outskirts of Galaxy Clusters: Intense Life in the Suburbs, IAU Coll. 195, ed. A. Diaferio (2004, in press) (astro-ph)

48. The Radio Butcher-Oemler Effect: The Evolution of the Radio-selected Galaxy Population within Rich Clusters over the Last 5 Gyr, G.E. Morrison, F.N. Owen, M.J. Ledlow, W.C. Keel, J.M. Hill, & W. Voges, in Tracing Cosmic Evolution with Galaxy Clusters, ASP Conference Proceedings, vol. 268. Ed. S. Borgani, M. Mezzetti, & R. Valdarnini, p. 417 (2002)

47. Dusty Galaxies at z > 1, Ian Smail, M.J. Ledlow, F.N. Owen, W.C. Keel, R.J. Ivison, and G.E. Morrison, Revista Mexicana de Astronomia y Astrofisica, 17, 214 (2003) (ADS)

46. HST Observations of Young Star Clusters in Interacting Galaxies, Kirk D. Borne, William C. Keel, Philip N. Appleton, Curtis Struck, Ray A. Lucas, and Alfred B. Schultz, in Extragalactic Star Clusters, IAU Symposium 207, ed. Eva Grebel, Doug Geisler, and Dante Minniti, 474 (2002) ( ADS)

45. HST Observations of Abell 2125: Radio Emission & the Butcher-Oemler Effect, M.J. Ledlow, F.N. Owen, W.C. Keel, & V. Andersen, in Galaxy Morphology for the New Millenium, ed. D. Block, Kluwer (Ap Spa Sci 269-270, 613-616, 1999)

44. Structure and Content of the 53W002 ``Cluster" at z=2.4, William C. Keel, Wentao Wu, Rogier A. Windhorst, Seth Cohen, Ian Waddington, and Sebastian Pascarelle, in The Hy-Redshift Universe: Galaxy Formation and Evolution at High Redshift, eds. A.J. Bunker and W.J.M. van Breugel, ASP Conf. Series vol. 193 (2000), pp. 419-422.

43. Detection of a Large, Powerful FR I Radio Galaxy in a Spiral Host, M.J. Ledlow, F.N. Owen, & W.C. Keel, in Galaxy Interactions at Low and High Redshift, IAUS 186, eds. J.E. Barnes & D.B. Sanders, 359 (1999) ( ADS)

42. Radio Emission and the Butcher-Oemler Effect in Abell 2125, M.J. Ledlow, F.N. Owen, K.S. Dwarakanath, W.C. Keel, & G.E. Morrison, in Observational Cosmology: The Development of Galaxy Systems, ASP Conference Series vol. 176, eds.G. Giuricin, M. Mezzetti, & P. Salucci 183 (1999) ( ADS)

41. Lyman alpha Emission From Galaxies at Low and High Redshift, William C. Keel, Sebastian M. Pascarelle, and Rogier A. Windhorst, in The Ultraviolet Universe at Low and High Redshift: Probing the Progress of Galaxy Evolution, eds. W. H. Waller, M. N. Fanelli, J. E. Hollis, & A. C. Danks, AIP Conf. Proceedings 408 (1997), pp. 413-417

40. A Cluster of Lyman-α Emitting Candidates at z=2.39 in Deep WFPC2 Images: Galaxy Formation from Subgalactic Clumps?, Pascarelle, S. M., Windhorst, R. A., & Keel, W. C. 1996, in Science with the Hubble Space Telescope -- II, STScI/ST-ECF Workshop Proceedings, Ed. P. Benvenuti, F. D. Macchetto, & E. J. Schreier (Baltimore: Space Telescope Science Institute), p. 109--118

39. Automated Morphological Classification of Galaxies from Ultradeep WFPC2 Fields in BVI, Odewahn, S. C., Windhorst, R. A., Driver, S. P., & Keel, W. C. 1996, in Science with the Hubble Space Telescope -- II, STScI/ST-ECF Workshop Proceedings, Ed. P. Benvenuti, F. D. Macchetto, & E. J. Schreier (Baltimore: Space Telescope Science Institute), p. 150--152

38. Radio galaxies and environment, Frazer N. Owen, K.S. Dwarakanath, Clay C. Smith, Michael J. Ledlow, William C. Keel, Glenn E. Morrison, Wolfgang Voges, and Jack O. Burns, in Energy Transport in Radio Galaxies and Quasars, ed. P. Hardee, A. Bridle, and A. Zensus, Astron. Soc. Pacific Conf. Series, (vol. 100), 353 (1996)

37. Distribution and content of dust in overlapping galaxy systems, R.E. White, III, W.C. Keel, and C.J. Conselice, in New Extragalactic Perspectives in the New South Africa, ed. D. Block , p. 114 (1996).

36. Deep HST imaging of a young z=2.40 galaxy cluster, Rogier A. Windhorst, Sam M. Pascarelle, and William C. Keel, in R.L. Davies and R. Bender, eds., IAU Sym. 171, New Light on Galaxy Evolution, (Kluwer: Dordrecht) 474 (1996).

35. Large-Scale Motions in the Hot ISM of M87, William C. Keel, Frazer N. Owen, and Jean A. Eilek, in Energy Transport in Radio Galaxies and Quasars, ed. P. Hardee, A. Bridle, and A. Zensus, Astron. Soc. Pacific Conf. Series, (vol. 100), 209 (1996)

34. The Far-Infrared Radiation in M83, L.V. Jones and W.C. Keel, in Barred Galaxies, eds. R.J. Buta, B.G. Elmegreen, and D.A. Crocker, IAU Coll. 157, ASP Conf. Series 91, 102 (1996)

33. A K-band Search for Induced Bars in Interacting Systems, William C. Keel, Gene G. Byrd, and Mario Klaric, in Barred Galaxies, eds. R.J. Buta, B.G. Elmegreen, and D.A. Crocker, IAU Coll. 157, ASP Conf. Series 91, 360 (1996)

32. The nature of faint galaxies from the Medium Deep Survey and other deep HST images, R. A. Windhorst, S. P. Driver, E. J. Ostrander, S. B. Mutz, P. C. Schmidtke, R. E. Griffiths, K. U. Ratnatunga, S. Casertano, M. Im, L. W. Neuschaefer, R. S. Ellis, G. F. Gilmore, R. A. W. Elson, K. Glazebrook, B. Santiago, W. C. Keel, D. C. Koo, G. D. Illingworth, D. A. Forbes, A. C. Phillips, R. F. Green, J. P. Huchra, and A. J. Tyson, in Galaxies in the Young Universe, eds. H. Hippelein, K. Meisenheimer, & H.-J. Roeser (Springer-Verlag, in press)

31. Properties of Dust in Backlit Galaxies, William C. Keel and Raymond E. White, III, in The Opacity of Spiral Disks, ed. J.I. Davies, NATO Advanced Study Institute series C, vol 469, Kluwer p. 167 (1995)

30. Morphological fits and redshift constraints for faint galaxies using WF/PC data, William C. Keel, Jordan M. Burkey, and Wentao Wu, available electronically. (1994)

29. HST/FOS UV-spectroscopy of weak radio galaxies at z=0.1-0.6, Windhorst, R. A., Pascarelle, S. M., Keel, W. C., Bertola, F., McCarthy, P. J., O'Connell, R. W., Renzini, A., & Spinrad, H. 1994, in Frontiers of Space and Ground-based Astronomy, Astrophysics and Space Science Library, Vol. 187, ed. W. Wamsteker, M. S. Longair, & Y. Kondo (Dordrecht: Kluwer), 663--667.

28. Kar 29: Tidal Effects from a Second or Third Party, P. Marziani, W.C. Keel, D. Dultzin-Hacyan, and J.W. Sulentic, in Mass-Transfer Induced Activity in Galaxies, ed. I. Shlosman, (Cambridge), p. 396 (1994).

27. Evolution of the Galaxy Merger Rate: Counting Pairs in HST Fields, Jordan M. Burkey, William C. Keel, and Rogier A. Windhorst, in Mass-Transfer Induced Activity in Galaxies, ed. I. Shlosman, (Cambridge), p. 483 (1994).

26. Kinematic Instabilities, Interactions, and Fuelling of Seyfert Galaxies, in Mass-Transfer Induced Activity in Galaxies, ed. I. Shlosman, (Cambridge), p. 335 (1994).

25. Obscuration Effects in Starburst Galactic Nuclei, in Massive Stars: Their Lives in the Interstellar Medium, ed. J. Cassinelli and E. Churchwell, ASP Conf. Series vol. 35, 498 (1993)

24. HST/WFC Imaging of Distant Weak Radio Galaxies, R.A. Windhorst, A.J. Ferro, J.M. Gordon, D.F. Mathis, L.W. Neuschaefer, and W.C. Keel, 1993, in Science with the Hubble Space Telescope, ESO Conference and Workshop Proceedings No. 44, Ed. P. Benvenuti & E. Schreier (Munich: European Southern Observatory), p. 21-31 (1993)

23. A Video Simulation Atlas of Tidal Arms in Galaxies, G. Byrd, W.C. Keel, J. Burkey, and S. Howard, in Proc. First Finland - Commonwealth of Independent States Conference on Radio Astronomy (in press, 1992).

22. Applications of CLEAN to Deconvolution of Direct Images, in Astronomical Data Analysis Software and Systems, eds. D.M. Worrall, C. Biemesderfer, and J. Barnes, ASP Conference Series, vol. 25, 173 (1992).

21. The Enigmatic Jets of NGC 1097, Ann E. Wehrle, William C. Keel, and Dayton L. Jones, in The Interpretation of Modern Synthesis Observations of Spiral Galaxies, Astron. Soc. Pacific Conf. Proceedings vol 18., ed. N. Duric and P. Crane, p. 251 (1991)

20. Nuclear Activity: How Irritating are Neighbours?, J.M. van er Hulst, E. Hummel, W.C. Keel, and R.C. Kennicutt, Jr., in Dynamics and Interactions of Galaxies, ed. R. Wielen (Springer-Verlag: Heidelberg), p. 455 (1990).

19. Statistics of Associations among IR Galaxies, J.F. Gallimore and W.C. Keel, in J.W. Sulentic, W.C. Keel, and C. Telesco, eds., Paired and Interacting Galaxies, IAU Coll. 124, NASA CP-3098 (Washington: U.S. Govt. Printing Office), p. 353 (1990).

18. A Simulation Survey of Galaxy Encounters, G.G. Byrd, S.A. Howard, and W.C. Keel, in J.W. Sulentic, W.C. Keel, and C. Telesco, eds., Paired and Interacting Galaxies, IAU Coll. 124, NASA CP-3098 (Washington: U.S. Govt. Printing Office), p. 565 (1990).

17. The Role of Shocks in NGC 6240, in J.W. Sulentic, W.C. Keel, and C. Telesco, eds., Paired and Interacting Galaxies, IAU Coll. 124, NASA CP-3098 (Washington: U.S. Govt. Printing Office), p. 441 (1990).

16. The Optical Variability of Palomar-Green Quasars, W.C. Keel and P.M. Allan, in Variability of Active Galactic Nuclei, ed. H.R. Miller and P.J. Wiita, (Cambridge), p. 83 (1991).

15. The Emission-Line Structure of the Centaurus A Jet, in Extranuclear Activity in Galaxies, ed. R.A.E. Fosbury and E.J.A. Meurs, European Southern Observatory (Garching bei Muenchen), 427 (1989).

14. Extended Emission-Line Regions in Interacting Galaxies, W.C. Keel, R.C. Kennicutt, Jr., J.M. van der Hulst, and E. Hummel, in Extranuclear Activity in Galaxies, ed. R.A.E. Fosbury and E.J.A. Meurs, European Southern Observatory (Garching bei Muenchen), 85 (1989).

13. Design and Program Planning for Automated Spectrophotometry of Galactic Nuclei, in A.G.D. Philip, D.S. Hayes, and S.J. Adelman, eds., New Directions in Spectrophotometry (1988, L. Davis Press), p. 269.

12. High-Resolution Observations of the Active Nucleus in M81, in D.E. Osterbrock and J.S. Miller, eds., Active Galactic Nuclei, IAU Symposium 134 (D. Reidel), p. 513 (1989).

11. The Optical Continuum Shapes of Extragalactic Radio Jets, in Active Galactic Nuclei, ed. H.R. Miller and P. Wiita, Lecture Notes in Physics v. 307 (Springer-Verlag), p. 364 (1988).

10. Another Supernova with a Blue Progenitor, C.M. Gaskell and W.C. Keel, in Supernova 1987A in the Large Magellanic Cloud, ed. M. Kafatos and A. Michalitsianos (Cambridge), p. 13 (1987).

9. Star Formation in Interacting Galaxies, in Starbursts and Galaxy Evolution, Proc. 22nd Rencontre de Moriond, ed. T. Montmerle and J. Tran Thanh Van (Editiones Frontieres), p. 307 (1987).

8. Properties of the Unusual Galaxy PSC 09104+4109, S.G. Kleinmann and W.C. Keel, in Star Formation in Galaxies, ed. C.J. Persson (NASA CP-2466), p. 559 (1987).

7. IRAS Observations of AGN Candidates at Low Flux Levels, M.H.K. de Grijp, W.C. Keel, and G.K. Miley, in Star Formation in Galaxies, ed. C.J. Persson (NASA CP-2466), p. 693 (1987).

6. Induced Star Formation in Interacting Galaxies, R.C. Kennicutt, Jr., K.A. Roettiger, W.C. Keel, J.M. van der Hulst, and E. Hummel, in Star Formation in Galaxies, ed. C.J. Persson (NASA CP-2466), p. 401 (1987).

5. Star Formation Around Active Galactic Nuclei, in Star Formation in Galaxies, ed. C.J. Persson (NASA CP-2466), p. 661 (1987).

4. The Effects of Galaxy-Galaxy Interactions on Nuclear Activity, J.M. van der Hulst, E. Hummel, W.C. Keel, and R.C. Kennicutt, Jr., in Spectral Evolution of Galaxies, ed. C. Chiosi and A. Renzini (D. Reidel), p. 103 (1986).

3. Optical Spectroscopy of Radio Jets in 3C 31, 3C 75, 3C 83.1, and 3C 465, C.P. O'Dea, F.N. Owen, and W.C. Keel, Can. J. Phys. 64,369 (1986).

2. Classification of Optical Jets in Galaxies, in Structure and Evolution of Active Galaxies, ed. F. Mardirossian (D. Reidel), p. 579 (1986).

1. Optical Observations of Probable and Possible Gravitational Lenses, in Quasars and Gravitational Lenses, Proc. 24th Liege Astrophys. Coll., p. 199 (1983).



Meeting Presentation Abstracts:

73. Lyman α structures of "Green Bean" ionization echoes, Keel, William; Schirmer, Mischa; Malhotra, Sangeeta; Fu, Hai; Davies, Rebecca; Diaz, Ruben; Levenson, Nancy; Torrey, Paul; Turner, James; Nagao, Tohru; Ichikawa, Kohei; Kawamuro, Taiki; Ricci, Claudio, AAS Meeting 233, 243.29 (2019) ( ADS)

72. Long-term Ultraviolet Monitoring of a Tidal Disruption Event at only 90 Mpc, Maksym, W. Peter; Cenko, Bradley; Eracleous, Michael; Keel, William C.; Irwin, Jimmy; Sigurdsson, Steinn; Fruchter, Andrew; Gezari, Suvi; Bogdanovic, Tamara; Roth, Katherine, AAS Meeting 231, 347.22 (2018) (ADS)

71. Galaxy Zoo: Comparing the visual morphology of synthetic galaxies from the Illustris simulation with those in the real Universe, Dickinson, Hugh; Lintott, Chris; Scarlata, Claudia; Fortson, Lucy; Bamford, Steven; Cardamone, Carolin; Keel, William C.; Kruk, Sandor; Masters, Karen; Simmons, Brooke D.; Vogelsberger, Mark; Torrey, Paul; Snyder, Gregory; Galaxy Zoo Science Team, AAS Meeting 331, 110.07 (2018) (ADS)

70. Dust lanes in backlit galaxies: first results from the STARSMOG survey, Keel, William C.; Bradford, Sarah; Holwerda, Benne; Conselice, Christopher; Baldry, Ivan; Bland-Hawthorn, Jonathan; Driver, Simon P.; Dunne, Loretta; Liske, Jochen; Robotham, Aaron; Tuffs, Richard, AAS meeting 229, 144.17 (2017) ( ADS)

69. First Results from Galaxy Zoo CANDELS: The Settling of Galactic Disks from 0.5 < z < 2, B. Simmons, T. Melvin, C. Lintott, K. Masters, K. Willett, W.C. Keel, R. Smethurst, E. Cheung, R. Nichol, K. Schawinski, Galay Zoo, CANDELS, AAS Meeting 225 (January 2015), 225.426.02

68. Galaxy Zoo: spiral galaxy morphologies and their relation to the star-forming main sequence, L. Willett, K. Schawinski, K. Masters, T. Melvin, R.A. Skibba, R. Nichol, E. Cheung, C. Lintott, B.D. Simmons, S. Kaviraj, W.C. Keel, L. Fortson, & Galaxy Zoo volunteers, AAS Meeting 225 (January 2015), 225.227.04

67. Tidal Disruption Events From Nearby Dwarf Galaxies, W. P. Maksym, M.P. Ulmer, K. Roth, J. Irwin, R.A. Dupke, L.C. Ho, W.C. Keel, C. Adami, & D. Lin, AAS meeting 225 (January 2015), 225.144.28

66. Tidal Disruption Events from Archival X-ray Observations of Dwarf Galaxies, W. Peter Maksym, J.A. Irwin, M.P. Ulmer, K. Roth, R.A. Dupke, L.C. Ho, W.C. Keel, & D. Lin, AAS Meeting 223 (January 2014), 223/406.02

65. Quasar Ionization Echoes -- 100,000 Year Baseline AGN Light Curves, Mischa Schirmer, W.C Keel, H. Fu, T. Nagao, N. Levenson, R. Diaz, J Turner, & K. Holhjem, AAS Meeting 223 (January 2014), 223.250.11

64. The Green Valley is a Red Herring: Different Evolutionary Pathways for Spheroidal and Disk Galaxies, C.M. Urry, K. Schawinski, B.D. Simmons, L. Fortson, J. Kaviraj, W.C. Keel, C. Lintott, K. Masters, R. Nichol, M. Sarzi, R.A. Skibba, E. Treister, K. Willett, O. Wong, S. Yi, Galaxy Zoo citizen scientists, AAS Meeting 223 (January 2014) 223.246.21

63. Spatio-Temporal Sequencing Of Mass Dependent Galaxy Transformation Mechanisms In The Complex Environment Of SuperGroup Abell 1882, A. Sengupta, W.C. Keel, G.E. Morrison, R.A. Windhorst, & B.M. Smith, AAS meeting 223 (January 2014), 223.231.03

62. Mass Dependent Galaxy Transformation Mechanisms In The Complex Environment Of SuperGroup Abell 1882, A. Sengupta, W.C. Keel, G.E. Morrison, R.A. Windhorst, & B.M. Smith, AAS Meeting 222 (June 2013), 222.314.09

61. HST Imaging of Giant Ionized Clouds Around Fading AGN, William C. Keel, W.P. Maksym, V. Bennert, K. Schawinski, C.J. Lintott, & D. Chojnowski, AAS Meeting 221 (January 2013), 221.339.47

60. Quasar Host Galaxies at z=2 and z=6: Point Source Subtraction With MCMC, Matt Mechtley, A.M. Koekemoer, K. Jahnke, B.M.Smith, R.A. Windhorst, S.H. Cohen, X. Fan, N.P. Hathi, R. Jansen, L. Jiang, W.C Keel, H. Rottgering, R.E. Ryan, E. Scannapieco, D.P. Schneider, G. Schneider, M.A. Strauss, & H. Yan, AAS Meeting 221 (January 2013), 221.339.31

59. Planet Hunters in the Kepler Extended Mission, Megan E. Schwamb, C.J. Lintott, D. Fischer, J.M. Brewer, M.J. Giguere, S. Lynn, M. Parrish, K. Schawinski, R. Simpson, A.M. Smith, J.A. Orosz, J.A. Carter, A. Howard, G. Torres, J.R. Crepp, W.C. Keel, W. C. W.F. Welsh,N.A. Kaib, D. Terrell, R. Gagliano & K.J. Jek, AAS Meeting 221 (January 2013), 221.315.01

58. Mechanisms for Galaxy Transformation in the Complex Environment of SuperGroup Abell 1882, Aparajita, Sengupta, W.C. Keel, G.E. Morrison, R.A. Windhorst, & B. Smith, AAS Meeting 221 (January 2013), 221.304.07

57. The Andromeda Project and PHAT Stellar Clusters, L.C. Johnson, J. Dalcanton, A. Kapadia, R. Simpson, C.J. Lintott, E.D. Skillman, B. Holwerda, W.C. Keel, M. Fouesneau, PHAT Team, & Andromeda Project team, AAS Meeting 221 (January 2013), 221.250.11

56. Galaxy Zoo: Two Evolutionary Pathways and Quenching Modes for Early- and Late-type Galaxies, Kevin Schawinski, C.M. Urry, C.J. Lintott, B. Simmons, S. Kaviraj, K.L. Masters, L. Fortson, K. Wilett, C.N. Cardamone, R.A Skibba, W.C. Keel, R. Nichol & Galaxy Zoo team 2013, AAS Meeting 221 (January 2013), 221/225/06

55. Galaxy Zoo: Testing the Relationship between AGN Identification and Host Galaxy Inclination, Stephanie M. LaMassa, K. Schawinski, J. Parejko, C. Urry, K. Masters, W. Keel, C. Lintott, AAS meeting 220 (June 2012). 220.335.24)

54. Galaxy Evolution at the Cluster- Filament Interface of SuperGroup Abell 1882, A. Sengupta, W. Keel, G. Morrison, AAS meeting 219, 44.019, (ADS)

53. WFC3 Imaging Of z=6 Quasars: Examining The Host Galaxies Of AGN In The Early Universe, M. Mechtley, R. Windhorst, R. Ryan, S. Cohen, G. Schneider, X. Fan, N. Hathi, R. Jansen, W. Keel, A. Koekemoer, H. Roettgering, E. Scannapieco, D. Schneider, M. Strauss, H. Yan, AAS meeting 219, 34.623 (ADS)

52. Ultraviolet Extinction in Backlit Galaxies - from Galaxy Zoo to GALEX, W.C. Keel, A. Manning, B. Holwerda, C. Lintott, K. Schawinski, Galaxy Zoo team, AAS meeting 219, 34.623 (ADS)

51. WFC3 Imaging of z=6 QSO hosts: a Method for PSF Characterization and Subtraction, M.Mechtley, RA. Windhorst, G. Schneider, S.H. Cohen, X. Fan, N.P. Hathi, W.C. Keel, A. Koekemoer, H. Rottgering, R.E., Yan, D.P. Schneider, M.A. Strauss, & H. Yan, BAAS, meeting 217, 142.40 (2011) (ADS)

50. Optical Spectra of the Teacup AGN, J. Gagne, D.M. Crenshaw, W.C. Keel, & T.C. Fischer, BAAS meeting 217, 142.12 (2011) (ADS)

49. The History and Environment of a Faded Quasar: HST Observations of Hanny's Voorwerp and IC 2497, W.C. Keel, C. Lintott, K. Schawinski, V. Bennert, D. Thomas, A. Manning .D. Chojnowski, & H. van Arkel, BAAS meeting 217, 142.08 (2011) (ADS)

48. Galaxy-scale Clouds Of Ionized Gas Around AGN - History And Obscuration, S.D. Chojnowski & W.C. Keel, AAS meeting 217, 142.07 (2011) (ADS)

47. The sudden death of the nearest quasar, K. Schawinski, D.A. Evans, S. Virani, M. Urry, W.C. Keel, P. Natarajan, C.J. Lintott, A. Manning, P. Coppi, S. Kaviraj, S. Mamford, G.I.G. Josza, H. van Arkel, P. Gay, & L. Fortson, BAAS, meeting 217, 106.04 (2011) (ADS

46. Evolution and extent of disk opacity, B.W. Holwerda, R.A. Gonzalez, R.J. Allen, W.C. Keel, & P.C. van der Kruit, BAAS 39, 891 (2008) (ADS)

45. The X-ray Background Hardness Problem and Obscured Active Galactic Nuclei, B. May and W.C. Keel, BAAS, abstract 157.06, (ADS)

44. The disappearance of Lyman a blobs by z=0.8, W.C. Keel, R.E. White III, R.A. Windhorst, & S.C. Chapman, BAAS 39, 821 (2008) (ADS)

43. The first 25 years of space astronomy in the USSR, W.C. Keel, BAAS 39, 774 (2008) (ADS)

42. Three-Dimensional Reconstruction of Dust Structures in Galactic Nuclei, S.O. Vasylyev & W.C. Keel, BAAS 36, 1444 (abstract 60.14), 2004 ( ADS)

41. AGN in Lyman alpha Blobs: Ubiquitous and Irrelevant, R.E. White III,. W.C. Keel, & R.A. Windhorst, BAAS 36, 961 (26.15), 2004 ( ADS)

40. Gone with the Wind: Watching Galaxy Transformation in Abell 2125, W.C. Keel, F. Owen, M. Ledlow, & D. Wang, BAAS 35, 1281 (203.4705), 2003 ( ADS )

39. An Ha Survey of the Butcher-Oemler Cluster Abell 851, C.E. Covington, W.C. Keel, I. Smail, F.N. Owen, G.E. Morrison, R.A. Windhorst, & S.C. Odewahn,BAAS 35, 714 (11.02), 2003 ( ADS )

38. An Atlas of Warm AGN and Starbursts from the IRAS Deep Fields, W.C. Keel, B.K. Irby, M.H.K. de Grijp, G.K. Miley, & D. Golombek (2003) BAAS 35, 759 (42.06), 2003 ( ADS)

37. HST and Gemini Images of the Radio Galaxy 0313-192: A Giant Radio Source from the Wrong Kind of Galaxy, W.C. Keel, M.J. Ledlow, & F.N. Owen, BAAS 34, 1245 (86.04), 2002 (ADS)

36. FUSE spectra of Nearby Star-Forming Regions and Comparison to High-Redshift Galaxies, P. Treuthardt, W.C. Keel, J. Holberg, & C. Steidel, BAAS 33, 1383 (55.03), 2001. (ADS)

35. Escape of Lyman alpha from the ISM in the starburst galaxy Mkn 357, W.C. Keel, BAAS 33, 1373 (49.06), 2001. (ADS)

34. Ongoing Mass Transfer in the Interacting Galaxy Pair NGC 1409/10, W.C. Keel, BAAS (2000), 32, 1450. (ADS)

33. Dust Structures as Revealed by HST Imaging of Overlapping Galaxies, W.C. Keel and R.E. White III, BAAS 31, 1524 (1999) (105.05) (ADS)

32. Dust in Spiral Galaxies: Comparing Emission and Absorption to Constrain Small-Scale and Very Cold Structures, Domingue, D. L., Keel, W. C., White, R. E., III, & Ryder, S. D., BAAS 194.0704 (1999) (ADS)

31. The Evolution of the Radio Galaxy Population in Very Rich Clusters, G. Morrison, F. Owen, M. Ledlow, W.C. Keel, and J. Hill, BAAS 29, 1399 (1997) (ADS)

30. HST and ISO Mapping of Dust in Silhouetted Spiral Galaxies, W.C. Keel and R.E. White III, BAAS 29, 1327 (1998) (ADS)

29. Stellar Populations at High Redshift: How Old is Old?, BAAS 29, 843 (1997) (ADS | WWW summary)

28. Radio Galaxy Evolution in Very Rich Clusters, G. Morrison, F. Owen, M. Ledlow, W. Keel, A. Beasley, & J. Hill, BAAS 28, 831 (1996) (ADS)

27. Direct Extinction Measures in Overlapping Galaxies. C. Conselice, W.C. Keel, and R.E. White, III, BAAS, 27, 1353 (1995) (ADS)

26. Discovery of a Cluster of Young Galaxies at z~2.40 in Deep HST WFPC2 Images: Formation from Sub-galactic Size Clumps?, S.M. Pascarelle, R.A. Windhorst, S.C. Odewahn, and W.C. Keel, BAAS, 27, 1442 (1995) (ADS)

25. ROSAT HRI Observations of NGC 2276 and NGC 1961, D.S. Davis, W.C. Keel, J. Mulchaey, and J.J. Condon, BAAS, 27, 1354 (1995) (ADS)

24. The UV-IR Energy Budget and Far-Infrared Emission in Spiral Galaxies, L.V. Jones and W.C. Keel, BAAS 26, 1496 (1994) (ADS)

23. Deep HST/PC imaging of a young elliptical radio galaxy at z=2.390, R.A. Windhorst and W.C. Keel, BAAS 26, 1497 (1994) (ADS)

22. The Serendipitous Discovery of a Possible Young Galaxy Cluster at z=2.390 in Deep HST/WFPC2 Images, S.M. Pascarelle, R.A. Windhorst, E.J. Ostrander, S.B. Mutz, and W.C. Keel, BAAS 26, 1403 (1994) (ADS)

21. Optical Spectroscopy of Candidate Radio Hot Spots, P. Martini and W.C. Keel, BAAS 26, 1340 (1994) (ADS)

20. Galaxies and Pairs in a Deep WFPC2 Field, W.C. Keel, R.A. Windhorst, and B.E. Franklin, BAAS 26, 1494 (1994) (ADS)

19. Pictor A - Discovery of Strong Balmer Line Variation, Paolo Marziani, Jack W. Sulentic, William C. Keel, Tomaz Zwitter, and Massimo Calvani, BAAS 26, 942 (1994) (ADS)

18. H II Regions in Interacting Galaxies, L.M. Frattare, W.C. Keel, and E. Laurikainen, BAAS 25, 1356 (1993) (ADS)

17. Evidence for Evolution in the Galaxy Merger Rate, B.E. Franklin, R.A.Windhorst, J.M. Burkey, and W.C. Keel, BAAS 25 1324, (1993) (ADS)

16. The Local Merger Rate of Disk Galaxies, W.C. Keel and W. Wu, BAAS 25, 1324 (1993) (ADS)

15. HST/FOS Spectroscopy of Early-Type Radio Galaxies at z < 0.6, S.M. Pascarelle, R.A. Windhorst, W.C. Keel, F. Bertola, P.J. McCarthy, R.W. O'Connell, A. Renzini, and H. Spinrad, Bull. Am. Astron. Soc. 25, 794 (1993) (ADS)

14. HST Morphology and Light Profiles of Field Galaxies Surrounding Distant Radio Sources, J.M. Gordon, D.F. Mathis, S.M. Pascarelle, P.C. Schmidtke, R.A. Windhorst, W.C. Keel, and J.M. Burkey, Bull. Am. Astron. Soc. 24, 1222 (1992) (ADS)

13. Near-IR Bars and Disk Distortions in Interacting Seyferts, M. Klaric, G.G. Byrd, and W.C. Keel, Bull. Am. Astron. Soc. 24, 728 (1992) (ADS)

12. HST Imaging of Distant Giant Elliptical Radio Galaxies, R.A. Windhorst, A.J. Ferro, J.J. Hester, D.F. Mathis, W.C. Keel, A.G. Willis, and P.Katgert, Bull. Am. Astron. Soc. 23, 1334 (1991) (ADS)

11. A Simulation Survey of Galaxy Encounters, J. Burkey, W. Keel, G. Byrd, and S. Howard, Bull. Am. Astron. Soc. 23, 1390 (1991) (ADS)

10. Orbital Direction, Internal Kinematics, and Morphology in Interacting Spiral Galaxies, W. Keel, Bull. Am. Astron. Soc. 23, 1459 (1991) (ADS)

9. An Observational and Simulation Survey of Galaxy Encounters: Nuclear Activity Mechanisms, G. Byrd, W. Keel, and S. Howard, Bull. Am. Astron. Soc. 22, 932 (1990)

8. II Zw 23 - A Late-Forming Galaxy, Bull. Am. Astron. Soc 16,990 (1984) (ADS)

7. Very Low Luminosity Active Galaxies and the X-ray Background, M. Elvis, A. Soltan, and W.C. Keel, Bull. Am. Astron. Soc. 14,933 (1983) (ADS)

6. Ionized Gas in the Nuclei of Normal Spirals: Are They All Active?, Publ. Astron. Soc. Pacific 94,754 (1982) (ADS)

5. X-Ray, Optical, and Radio Properties of Quasars, G.R. Blumenthal, W.C. Keel, and J.S. Miller, Bull. Am. Astron. Soc. 13, 849 (1982) (ADS)

4. Gravitational Lenses and the Apparent Association of QSOs and Bright Galaxies, Bull. Am. Astron. Soc. 13, 805 (1982) (ADS)

3. A Survey of Bright Galactic Nuclei, W.C. Keel and D.W. Weedman, in J. Tenn. Acad. Sci. 52, 148 (1977).

2. A Survey of Bright Galactic Nuclei, W.C. Keel and D.W. Weedman, Bull. Am. Astron. Soc 9, 296 (1977) (ADS)

1. A Period Study for RZ Cassiopeiae, D.S. Hall, W.C. Keel, and G. Neuhaus, J. Tenn. Acad. Sci. 51, 149 (1976).



Invited Review Papers:

13. Unveiling Galaxy Interactions: Watching the Tides Roll, in Galaxy Wars: Stellar Populations and Star Formation in Interacting Galaxies, ed. B.J. Smith, N. Bastian, J. Higdon, & S. Higdon, ASP Conf. Series, vol. 423, p. 249 (2010) ( arXiv)

12. The Early Universe: from Recombination to Reionization, in Astrophysics Update, Springer/Praxis 2004, 139.

11. Dusty Galaxies at z > 1, I. Smail, M. Ledlow, F. Owen, W. Keel, R. Ivison, & G. Morrison, Revista Mexicana de Astronomia y Astrofisica 17, 214 (2003) ( ADS )

10. The Ultraviolet View of M31 and M33, in The Interstellar Medium in M31 and M33, ed. E.M. Berkhuijzen and R. Beck, Shaker-Verlag (Aachen), 2000, p. 159-165 ( ADS)

9. Results from Parallel and Other Deep HST Surveys: Galaxy Counts vs. Type for 19<Bឍ, & Galaxy Formation from Sub-galactic Clumps, Windhorst, R., Pascarelle, S., Odewahn, S., Cohen, S., Burg, C., Keel, W., & Driver, S. 1998, in Proceedings of the STScI Symposium on ``The Hubble Deep Field", Eds. M. Livio, S. M. Fall, & P. Madau (Cambridge University Press), 481-505 (1998)

8. Galaxy Interactions at High Redshift, in Interacting Galaxies in Pairs, Groups, and Clusters, ed. G.G.C. Palumbo, Ap. Lett. Comm., in press

7. A Sober Look at Bars in Galaxies, in Barred Galaxies, eds. R.J. Buta, B.G. Elmegreen, and D.A. Crocker, IAU Coll. 157, ASP Conf. Series 91, 560 (1996)

6. Scientific Results from Deconvolved Images, in The Restoration of HST Images and Spectra - II, ed. R.J. Hanisch and R.L. White (NASA/STScI), 359. Available electronically.

5. Galaxy Pairs, Star Formation, and Nuclear Activity: Searching for the Link, Revista Mexicana de Astronomia y Astrofisica, 27, 77 (1993)

4. Star Formation and Galaxy Interactions, in Dynamics of Galaxies and Their Molecular Cloud Distributions, ed. F. Combes and F. Casoli, IAU Sym. 146 (Kluwer), p. 243 (1991).

3. Active Galactic Nuclei and Automatic Photoelectric Telescopes: Prospects and Requirements, in Automatic Photoelectric Telescopes, ed. D.S. Hall, R.M. Genet, and B.L. Thurston (Fairborn Press), p. 176 (1987).

2. Unity and Diversity among Jets in Active Galaxies, in Observational Evidence of Activity in Galaxies, ed. E. Khachikian, K. Fricke, and J. Melnick, IAU Sym. 121 (D. Reidel), p. 255 (1987).

1. Low-Luminosity Active Galactic Nuclei, in Astrophysics of Active Galaxies and Quasistellar Objects, ed. J.S. Miller (University Science Books), p. 1 (1985).



Books Edited:

2. Planets, Stars, and Stellar Systems, vol. 6 - Extragalactic Astronomy and Cosmology (Springer 2013)

1. Paired and Interacting Galaxies, IAU Coll. 124, eds. J.W. Sulentic, W.C. Keel, and C.M. Telesco, NASA CP-3098 (Washington: U.S. Government Printing Office) (1990).



Book Translated:

1. Dvoinye Galaktiki (Double Galaxies), I.D. Karachentsev, translated by William C. Keel and Nigel A. Sharp, originally published by Nauka in Moscow (1987). Translation available at http://nedwww.ipac.caltech.edu/level5/Sept02/Keel/frames.html.



Non-Technical Works:

33. It's Never Aliens, Griffith Observer, vol. 85, no. 6, p. 2 (June 2021)

32. Photobombing the Universe, Griffith Observer, vol. 79, no. 3, p. 3 (March 2015)

31. Galactic Structure, in Discoveries in Modern Science: Exploration, Invention, Technology, eds. James Trefil, Patricia Daniels, Donna McPhie & Craig Schiffries, Macmillan (in press)

30. Less Light, More Enlightenment, Griffith Observer, vol. 77, no. 7, p. 4 (July 2013)

29. The All-new, Positively Improved, Better-than-Ever Astronomy, Griffith Observer, vol. 76, no. 7, p. 3 (July 2012)

28. Sword of Orion - astronomical advancement and military technology, Griffith Observer, vol. 75, no. 11, p. 3 (November 2011)

27. Hanny and the mystery of the Voorwerp, M.Beatini, B. Keel, M. Schoenberg, J. & J. Thibeault, ed. K. McCullough and P. Gay, Citizen Science Alliance/Sips Comics (2010)

26. Welcome to the Galaxy Zoo!, Astronomy, September 2010, p. 30.

25. Astronomical Data Diving - Progress by Looking Back, Griffith Observer, vol. 75, no. 2, p. 3 (February 2011>.

24. Ptolemy's Telescope?, Griffith Observer, vol. 73 no. 12, p. 3 (December 2009) .

23. Tremors and Shimmyings - Holding a Telescope Still while the Universe says "Cheese", Griffith Observer, Vol. 73 no. 9 (September 2009), p. 3

22. Navigation - under the stars, by the stars, to the stars, Griffith Observer, July 2007, vol. 71, no. 7, p.4 .

21. Earth and Stars in the Lunar Sky, Skeptical Inquirer, Vol. 31, no. 4 (July/August 2007), pp. 47-50. (Online text)

20. Astronomers Above the Ozone, Griffith Observer, November 2006, vol. 70, no. 11, p. 2

19. To the Stars On Silver Wings, Griffith Observer, January 2006, vol. 70, no. 1, p. 2

18. Quasars Explained, Astronomy, February 2003 (34-41). Extended version available.

17. Galaxies, in Encyclopedia of Optical Engineering, Marcel Dekker, p. 629 (2003).

16. De speurtocht naar jonge sterrenstelsels, Zenit, December 1999, p. 496

15. Quasars and Active Galactic Nuclei (booklet and slide set), Astronomical Society of the Pacific, 1998. This material is completely available on the Web.

14. Before Galaxies were Galaxies, Astronomy, July 1997, p. 58.

13. A Non-Dialogue on the Two Great World Systems, Mercury, 24, no. 6 , p. 12 (1995). (Text).

12. Galaxies (booklet and slide set), Astronomical Society of the Pacific, 1994. (Booklet text).

11. An Astronomer's Eye, Mercury 23, 16 (1994)

10. Colliding Galaxies: the Real Astrophysical Zoo, Mercury 22, 43, (March/April 1993).

9. Galaxies through a Red Giant, Sky and Telescope 83, 626 (June 1992) (Text)

8. Review of Colliding Galaxies: The Universe in Turmoil by Barry Parker, Sky and Telescope 81, 274 (1991).

7. Binary and Multiple Galaxies and their Interactions, in S.P. Maran, ed., Reference Encyclopedia of Astronomy and Astrophysics, New York: Van Nostrand Reinhold, 1992 (p. 232).

6. A Distant View of La Silla, ESO Messenger, no. 55, 29 (1989).

5. Crashing Galaxies, Cosmic Fireworks, Sky and Telescope 76, 18 (1989).

4. Ways of Viewing the Universe (review of A Catalogue of Southern Peculiar Galaxies and Associations by H. Arp and B. Madore), Sky and Telescope 75, 606 (1988)

3. Tracing the Gas in Galaxies, Sky and Telescope 66, 206 (1983).

2. A Lens in the Sky: the Case of the Double Quasar, Griffith Observer 46, no. 4, p. 2 (1982).

1. Variable Galactic Nuclei, D.O. Hamilton, W.C. Keel, and J.F. Nixon, Sky and Telescope 55, 372 (1978).




Bill Keel's home page | UA Astronomy
wkeel@ua.edu
Last changes: 1 October 2021