P
Percy Gomez
Researcher at W.M. Keck Observatory
Publications - 60
Citations - 5105
Percy Gomez is an academic researcher from W.M. Keck Observatory. The author has contributed to research in topics: Galaxy & Galaxy cluster. The author has an hindex of 24, co-authored 59 publications receiving 4787 citations. Previous affiliations of Percy Gomez include Rutgers University & New Mexico State University.
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Journal ArticleDOI
Galaxy Star Formation as a Function of Environment in the Early Data Release of the Sloan Digital Sky Survey
Percy Gomez,Robert C. Nichol,Christopher J. Miller,Michael L. Balogh,Tomotsugu Goto,Tomotsugu Goto,Ann I. Zabludoff,Kathy Romer,Mariangela Bernardi,Mariangela Bernardi,Ravi K. Sheth,Andrew M. Hopkins,Francisco J. Castander,Andrew J. Connolly,Donald P. Schneider,Jon Brinkmann,D. Q. Lamb,Mark SubbaRao,Donald G. York +18 more
TL;DR: In this paper, a detailed analysis of the effect of environment on the star formation activity of galaxies within the Early Data Release (EDR) of the Sloan Digital Sky Survey (SDSS) was presented.
Journal ArticleDOI
Galaxy ecology: groups and low-density environments in the SDSS and 2dFGRS
Michael L. Balogh,Vince Eke,Christopher J. Miller,Ian Lewis,Richard G. Bower,Warrick J. Couch,Robert C. Nichol,Joss Bland-Hawthorn,Ivan K. Baldry,Carlton M. Baugh,Terry J. Bridges,Russell D. Cannon,Shaun Cole,Matthew Colless,Chris A. Collins,Nicholas Cross,Nicholas Cross,Gavin Dalton,Roberto De Propris,Simon P. Driver,George Efstathiou,Richard S. Ellis,Carlos S. Frenk,Karl Glazebrook,Percy Gomez,Alex Gray,Ed Hawkins,Carole Jackson,Ofer Lahav,Stuart Lumsden,Stephen J. Maddox,Darren Madgwick,Peder Norberg,John A. Peacock,Will J. Percival,Bruce A. Peterson,William J. Sutherland,Keith Taylor +37 more
TL;DR: In this article, the authors analyzed the observed correlation between galaxy environment and Halpha emission-line strength, using volume-limited samples and group catalogues of 24 968 galaxies at 0.05 < z < 0.095, drawn from the 2dF Galaxy Redshift Survey (M-bJ < -19.5) and the Sloan Digital Sky Survey(M-r < -20.6).
Journal Article
Galaxy Star Formation as a function of Environment
Francisco J. Castander,Francisco J. Castander,Michael L. Balogh,Mariangela Bernardi,Mariangela Bernardi,Richard G. Bower,Andrew J. Connolly,David Gilbank,Percy Gomez,Tomotsugu Goto,Andrew M. Hopkins,Christopher J. Miller,Robert C. Nichol,Donald P. Schneider,R. Seth,Ann I. Zabludoff +15 more
TL;DR: In this article, the authors studied the galaxy star formation rate as a function of environment using the SDSS EDR data and found that the suppression of the SFR starts to be noticeable at around 4 virial radii.
Journal ArticleDOI
The morphology–density relation in the Sloan Digital Sky Survey
Tomotsugu Goto,Chisato Yamauchi,Yutaka Fujita,Sadanori Okamura,Maki Sekiguchi,Ian Smail,Mariangela Bernardi,Percy Gomez +7 more
TL;DR: In this paper, the morphology-density relation and morphology-cluster-centric-radius relation were studied using a volume limited sample (0.05 < z < 0.1, Mr* < -20.5) of the Sloan Digital Sky Survey (SDSS) data.
Journal ArticleDOI
Star Formation Rate Indicators in the Sloan Digital Sky Survey
Andrew M. Hopkins,Christopher J. Miller,Robert C. Nichol,A. J. Connolly,Mariangela Bernardi,Mariangela Bernardi,Percy Gomez,Tomotsugu Goto,Christy Tremonti,J. Brinkmann,Željko Ivezić,D. Q. Lamb +11 more
TL;DR: In this article, a sample of star-forming (SF) galaxies are identified from among the 3079 of these having 1.4 GHz luminosities from the Sloan Digital Sky Survey (SDSS) by using optical spectral diagnostics.