T
Timothy M. Heckman
Researcher at Johns Hopkins University
Publications - 782
Citations - 148773
Timothy M. Heckman is an academic researcher from Johns Hopkins University. The author has contributed to research in topics: Galaxy & Star formation. The author has an hindex of 170, co-authored 754 publications receiving 141237 citations. Previous affiliations of Timothy M. Heckman include Carnegie Institution for Science & Centre National D'Etudes Spatiales.
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Journal ArticleDOI
The Sloan Digital Sky Survey: Technical summary
Donald G. York,Jennifer Adelman,John E. Anderson,Scott F. Anderson,James Annis,Neta A. Bahcall,J. A. Bakken,Robert H. Barkhouser,Steven Bastian,E. Berman,William N. Boroski,Steve Bracker,Charlie Briegel,John W. Briggs,Jon Brinkmann,Robert J. Brunner,Scott Burles,Larry N. Carey,Michael A. Carr,Francisco J. Castander,Francisco J. Castander,Bing Chen,Patrick L. Colestock,Andrew J. Connolly,James H. Crocker,István Csabai,István Csabai,Paul C. Czarapata,John Eric Davis,Mamoru Doi,Tom Dombeck,Daniel J. Eisenstein,Nancy Ellman,Brian R. Elms,Brian R. Elms,Michael L. Evans,Xiaohui Fan,Glenn R. Federwitz,Larry Fiscelli,Scott D. Friedman,Joshua A. Frieman,Joshua A. Frieman,Masataka Fukugita,Bruce Gillespie,James E. Gunn,Vijay K. Gurbani,Ernst De Haas,M. Haldeman,Frederick H. Harris,Jeffrey J. E. Hayes,Timothy M. Heckman,Gregory S. Hennessy,Robert B. Hindsley,S. Holm,Donald J. Holmgren,Chi Hao Huang,Charles L. Hull,Don Husby,Shin-Ichi Ichikawa,Takashi Ichikawa,Zěljko Ivezić,Stephen M. Kent,Rita S. J. Kim,E. Kinney,Mark A. Klaene,A. N. Kleinman,Scot Kleinman,Gillian R. Knapp,John Korienek,Richard G. Kron,Richard G. Kron,Peter Z. Kunszt,D. Q. Lamb,Brian C. Lee,R. French Leger,Siriluk Limmongkol,Carl Lindenmeyer,Dan Long,Craig Loomis,Jon Loveday,Rich Lucinio,Robert H. Lupton,Bryan Mackinnon,Bryan Mackinnon,Edward J. Mannery,Paul M. Mantsch,Bruce Margon,Peregrine M. McGehee,Timothy A. McKay,Avery Meiksin,Aronne Merelli,David G. Monet,Jeffrey A. Munn,Vijay K. Narayanan,Thomas Nash,Eric H. Neilsen,Rich Neswold,Heidi Jo Newberg,Heidi Jo Newberg,Robert C. Nichol,T. Nicinski,T. Nicinski,Mario Nonino,Norio Okada,Sadanori Okamura,Jeremiah P. Ostriker,Russell Owen,A. George Pauls,John Peoples,R. Peterson,Don Petravick,Jeffrey R. Pier,Adrian Pope,Ruth Pordes,Angela Prosapio,R. Rechenmacher,Thomas R. Quinn,Gordon T. Richards,Michael Richmond,Claudio H. Rivetta,Constance M. Rockosi,Kurt Ruthmansdorfer,Dale Sandford,David J. Schlegel,Donald P. Schneider,Maki Sekiguchi,G. Sergey,Kazuhiro Shimasaku,Walter A. Siegmund,Stephen A. Smee,J. Allyn Smith,S. A. Snedden,Robert Stone,Chris Stoughton,Michael A. Strauss,Christopher W. Stubbs,Mark SubbaRao,Alexander S. Szalay,István Szapudi,Gyula P. Szokoly,Anirudda R. Thakar,Christy Tremonti,Douglas L. Tucker,Alan Uomoto,Daniel E. Vanden Berk,Michael S. Vogeley,Patrick Waddell,Shu I. Wang,Masaru Watanabe,David H. Weinberg,Brian Yanny,Naoki Yasuda +151 more
TL;DR: The Sloan Digital Sky Survey (SDSS) as discussed by the authors provides the data to support detailed investigations of the distribution of luminous and non-luminous matter in the universe: a photometrically and astrometrically calibrated digital imaging survey of π sr above about Galactic latitude 30° in five broad optical bands to a depth of g' ~ 23 mag.
Journal ArticleDOI
The Seventh Data Release of the Sloan Digital Sky Survey
Kevork N. Abazajian,Jennifer K. Adelman-McCarthy,Marcel A. Agüeros,S. Allam,S. Allam,Carlos Allende Prieto,Deokkeun An,Deokkeun An,K. S. J. Anderson,Scott F. Anderson,James Annis,Neta A. Bahcall,Coryn A. L. Bailer-Jones,J. C. Barentine,Bruce A. Bassett,Andrew C. Becker,Timothy C. Beers,Eric F. Bell,Vasily Belokurov,Andreas A. Berlind,E. Berman,Mariangela Bernardi,Steven J. Bickerton,Dmitry Bizyaev,John P. Blakeslee,Michael R. Blanton,John J. Bochanski,John J. Bochanski,William N. Boroski,Howard Brewington,Jarle Brinchmann,Jarle Brinchmann,Jon Brinkmann,Robert J. Brunner,Tams Budavri,Larry N. Carey,Samuel Carliles,Michael A. Carr,Francisco J. Castander,D. Cinabro,Andrew J. Connolly,I. Csabai,Carlos E. Cunha,Paul C. Czarapata,James R. A. Davenport,Ernst De Haas,B. Dilday,B. Dilday,Mamoru Doi,Daniel J. Eisenstein,Michael L. Evans,Nick Evans,Xiaohui Fan,Scott D. Friedman,Joshua A. Frieman,Joshua A. Frieman,Masataka Fukugita,Boris T. Gänsicke,Evalyn Gates,Bruce Gillespie,Gerry Gilmore,Belinda Gonzalez,Carlos F. Gonzalez,Eva K. Grebel,James E. Gunn,Zsuzsanna Gyory,Patrick B. Hall,Paul Harding,Frederick H. Harris,Michael Harvanek,Suzanne L. Hawley,Jeffrey J. E. Hayes,Timothy M. Heckman,John S. Hendry,Gregory S. Hennessy,Robert B. Hindsley,Joshua Hoblitt,Craig J. Hogan,David W. Hogg,Jon A. Holtzman,J. B. Hyde,Shin-Ichi Ichikawa,Takashi Ichikawa,Myungshin Im,Eljko Ivezić,Sebastian Jester,Linhua Jiang,Jennifer A. Johnson,Anders M. Jorgensen,Mario Juric,Stephen M. Kent,Richard Kessler,S. J. Kleinman,Gillian R. Knapp,Kohki Konishi,Richard G. Kron,Richard G. Kron,Jurek Krzesinski,Jurek Krzesinski,Nikolay Kuropatkin,Hubert Lampeitl,Svetlana Lebedeva,Myung Gyoon Lee,Young Sun Lee,R. French Leger,Sébastien Lépine,Nolan Li,Marcos Lima,Marcos Lima,Huan Lin,Dan Long,Craig P. Loomis,Jon Loveday,Robert H. Lupton,E. A. Magnier,Olena Malanushenko,Viktor Malanushenko,Rachel Mandelbaum,Bruce Margon,John Marriner,David Martínez-Delgado,Takahiko Matsubara,P. M. McGehee,Timothy A. McKay,Avery Meiksin,Heather L. Morrison,Fergal Mullally,Jeffrey A. Munn,Tara Murphy,Tara Murphy,Thomas Nash,Ada Nebot,Eric H. Neilsen,Heidi Jo Newberg,Peter R. Newman,Robert C. Nichol,T. Nicinski,Maria Nieto-Santisteban,Atsuko Nitta,Sadanori Okamura,Daniel Oravetz,Jeremiah P. Ostriker,Russell Owen,Nikhil Padmanabhan,Kaike Pan,Changbom Park,George Pauls,John Peoples,Will J. Percival,Jeffrey R. Pier,Adrian Pope,Dimitri Pourbaix,Dimitri Pourbaix,Paul A. Price,Norbert Purger,Thomas R. Quinn,M. Jordan Raddick,Paola Re Fiorentin,Paola Re Fiorentin,Gordon T. Richards,Michael Richmond,Adam G. Riess,Hans-Walter Rix,Constance M. Rockosi,Masao Sako,Masao Sako,David J. Schlegel,Donald P. Schneider,R. D. Scholz,Matthias R. Schreiber,Axel Schwope,Uroš Seljak,Uroš Seljak,Uroš Seljak,Branimir Sesar,Erin Sheldon,Erin Sheldon,K. Shimasaku,Valena C. Sibley,A. Simmons,Thirupathi Sivarani,Thirupathi Sivarani,J. Allyn Smith,Martin C. Smith,Vernesa Smolić,Stephanie A. Snedden,Albert Stebbins,Matthias Steinmetz,Chris Stoughton,Michael A. Strauss,Mark SubbaRao,Mark SubbaRao,Yasushi Suto,Alexander S. Szalay,Istvn Szapudi,Paula Szkody,Masayuki Tanaka,Max Tegmark,Luis Teodoro,Aniruddha R. Thakar,Christy Tremonti,Douglas L. Tucker,A. Uomoto,Daniel E. Vanden Berk,Daniel E. Vanden Berk,Jan Vandenberg,S. Vidrih,Michael S. Vogeley,Wolfgang Voges,Nicole P. Vogt,Yogesh Wadadekar,Yogesh Wadadekar,Shannon Watters,David H. Weinberg,Andrew A. West,Simon D. M. White,B. C. Wilhite,Alainna C. Wonders,Brian Yanny,D. R. Yocum,Donald G. York,Idit Zehavi,Stefano Zibetti,Daniel B. Zucker +223 more
TL;DR: A series of improvements to the spectroscopic reductions are described, including better flat fielding and improved wavelength calibration at the blue end, better processing of objects with extremely strong narrow emission lines, and an improved determination of stellar metallicities.
Journal ArticleDOI
Starburst99: Synthesis Models for Galaxies with Active Star Formation
Claus Leitherer,Daniel Schaerer,Jeffrey D. Goldader,Rosa M. González Delgado,Carmelle Robert,Denis Foo Kune,Denis Foo Kune,Duilia F. de Mello,Daniel Devost,Daniel Devost,Timothy M. Heckman +10 more
TL;DR: Starburst99 as mentioned in this paper is a comprehensive set of model predictions for spectrophotometric and related properties of galaxies with active star formation, which is an improved and extended version of the data set previously published by Leitherer & Heckman.
Journal ArticleDOI
The host galaxies of active galactic nuclei
Guinevere Kauffmann,Timothy M. Heckman,Christy Tremonti,Jarle Brinchmann,Stephane Charlot,Stephane Charlot,Simon D. M. White,S. E. Ridgway,Jon Brinkmann,Masataka Fukugita,Patrick B. Hall,Patrick B. Hall,Željko Ivezić,Gordon T. Richards,Donald P. Schneider +14 more
TL;DR: In this paper, the authors examined the properties of the host galaxies of 22 623 narrow-line active galactic nuclei (AGN) with 0.02 < z < 0.3 selected from a complete sample of 122 808 galaxies from the Sloan Digital Sky Survey.
Journal ArticleDOI
The Origin of the Mass-Metallicity Relation: Insights from 53,000 Star-forming Galaxies in the Sloan Digital Sky Survey
Christy Tremonti,Christy Tremonti,Timothy M. Heckman,Guinevere Kauffmann,Jarle Brinchmann,Stephane Charlot,Simon D. M. White,Mark Seibert,Mark Seibert,Eric W. Peng,Eric W. Peng,David J. Schlegel,Alan Uomoto,Alan Uomoto,Masataka Fukugita,Jon Brinkmann +15 more
TL;DR: In this paper, the relation between stellar mass and gas-phase metallicity was studied using the Sloan Digital Sky Survey imaging and spectroscopy of ~53,000 star-forming galaxies at z = 0.1.