The overdensities of galaxy environments as a function of luminosity and color

David W. Hogg, Michael R. Blanton, Daniel J. Eisenstein, James E. Gunn, David J. Schlegel, Idit Zehavi, Neta A. Bahcall, Jon Brinkmann, Istvan Csabai, Donald P. Schneider, David H. Weinberg, Donald G. York

    Research output: Contribution to journalArticle

    Abstract

    We study the mean environments of galaxies in the Sloan Digital Sky Survey (SDSS) as a function of rest-frame luminosity and color. Overdensities in galaxy number are estimated in 8 and 1 h-1 Mpc spheres centered on 115,000 galaxies taken from the SDSS spectroscopic sample. We find that, at constant color, overdensity is independent of luminosity for galaxies with the blue colors of spirals. This suggests that at fixed star formation history, spiral-galaxy mass is a very weak function of environment. Overdensity does depend on luminosity for galaxies with the red colors of early types; both low-luminosity and high-luminosity red galaxies are found to be in highly overdense regions.

    Original languageEnglish (US)
    JournalAstrophysical Journal
    Volume585
    Issue number1 II
    DOIs
    StatePublished - Mar 1 2003

    Fingerprint

    luminosity
    galaxies
    color
    spiral galaxies
    star formation
    histories
    history

    Keywords

    • Galaxies: clusters: general
    • Galaxies: fundamental parameters
    • Galaxies: statistics
    • Large-scale structure of universe

    ASJC Scopus subject areas

    • Space and Planetary Science

    Cite this

    Hogg, D. W., Blanton, M. R., Eisenstein, D. J., Gunn, J. E., Schlegel, D. J., Zehavi, I., ... York, D. G. (2003). The overdensities of galaxy environments as a function of luminosity and color. Astrophysical Journal, 585(1 II). https://doi.org/10.1086/374238

    The overdensities of galaxy environments as a function of luminosity and color. / Hogg, David W.; Blanton, Michael R.; Eisenstein, Daniel J.; Gunn, James E.; Schlegel, David J.; Zehavi, Idit; Bahcall, Neta A.; Brinkmann, Jon; Csabai, Istvan; Schneider, Donald P.; Weinberg, David H.; York, Donald G.

    In: Astrophysical Journal, Vol. 585, No. 1 II, 01.03.2003.

    Research output: Contribution to journalArticle

    Hogg, DW, Blanton, MR, Eisenstein, DJ, Gunn, JE, Schlegel, DJ, Zehavi, I, Bahcall, NA, Brinkmann, J, Csabai, I, Schneider, DP, Weinberg, DH & York, DG 2003, 'The overdensities of galaxy environments as a function of luminosity and color', Astrophysical Journal, vol. 585, no. 1 II. https://doi.org/10.1086/374238
    Hogg DW, Blanton MR, Eisenstein DJ, Gunn JE, Schlegel DJ, Zehavi I et al. The overdensities of galaxy environments as a function of luminosity and color. Astrophysical Journal. 2003 Mar 1;585(1 II). https://doi.org/10.1086/374238
    Hogg, David W. ; Blanton, Michael R. ; Eisenstein, Daniel J. ; Gunn, James E. ; Schlegel, David J. ; Zehavi, Idit ; Bahcall, Neta A. ; Brinkmann, Jon ; Csabai, Istvan ; Schneider, Donald P. ; Weinberg, David H. ; York, Donald G. / The overdensities of galaxy environments as a function of luminosity and color. In: Astrophysical Journal. 2003 ; Vol. 585, No. 1 II.
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