Relationship between environment and the broadband optical properties of galaxies in the Sloan Digital Sky Survey

Michael R. Blanton, Daniel Eisenstein, David W. Hogg, David J. Schlegel, J. Brinkmann

    Research output: Contribution to journalArticle

    Abstract

    We examine the relationship between environment and the luminosities, surface brightnesses, colors, and profile shapes of luminous galaxies in the Sloan Digital Sky Survey (SDSS). For the SDSS sample, galaxy color is the galaxy property most predictive of the local environment. Galaxy color and luminosity - measures of the star formation history - jointly comprise the most predictive pair of properties. At fixed luminosity and color, density is not closely related to surface brightness or to Sérsic index - measures of galaxy structure. In the text, we discuss what measurable residual relationships exist, generally finding that at red colors and fixed luminosity, the mean density decreases at the highest surface brightnesses and Sérsic indices. In general, these results suggest that the structural properties of galaxies are less closely related to galaxy environment than are their masses and star formation histories.

    Original languageEnglish (US)
    Pages (from-to)143-157
    Number of pages15
    JournalAstrophysical Journal
    Volume629
    Issue number1 I
    DOIs
    StatePublished - Aug 10 2005

    Keywords

    • Galaxies: clusters: general
    • Galaxies: evolution
    • Galaxies: fundamental parameters
    • Galaxies: statistics

    ASJC Scopus subject areas

    • Astronomy and Astrophysics
    • Space and Planetary Science

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