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The Broadband Optical Properties of Galaxies with Redshifts 0.02 < z < 0.22

Authors :
K. Shimasaku
J. Brinkmann
David W. Hogg
Michael S. Vogeley
Ivan K. Baldry
I. Csabai
David H. Weinberg
Robert H. Lupton
M. R. Blanton
Daniel J. Eisenstein
Jeffrey A. Munn
Michael A. Strauss
Robert C. Nichol
N. A. Bahcall
S. Okamura
Masataka Fukugita
Jonathan Loveday
James E. Gunn
Z. Ivezic
David J. Schlegel
D. Q. Lamb
Source :
The Astrophysical Journal. 594:186-207
Publication Year :
2003
Publisher :
American Astronomical Society, 2003.

Abstract

Using photometry and spectroscopy of 183,487 galaxies from the Sloan Digital Sky Survey, we present bivariate distributions of pairs of seven galaxy properties: four optical colors, surface brightness, radial profile shape as measured by the Sersic index, and absolute magnitude. In addition, we present the dependence of local galaxy density (smoothed on 8 h(-1) Mpc scales) on all of these properties. Several classic, well-known relations among galaxy properties are evident at extremely high signal-to-noise ratio: the color-color relations of galaxies, the color-magnitude relations, the magnitude-surface brightness relation, and the dependence of density on color and absolute magnitude. We show that most of the i-band luminosity density in the universe is in the absolute magnitude and surface brightness ranges used: - 23.5 &lt; M-0,M-1i &lt; - 17.0 mag and 17 &lt; mu(0.1i) &lt; 24 mag in 1 arcsec(2) [ the notation (z)b represents the b band shifted blueward by a factor (1 + z)]. Some of the relationships between parameters, in particular the color-magnitude relations, show stronger correlations for exponential galaxies and concentrated galaxies taken separately than for all galaxies taken together. We provide a simple set of fits of the dependence of galaxy properties on luminosity for these two sets of galaxies and other quantitative details of our results.

Details

ISSN :
15384357 and 0004637X
Volume :
594
Database :
OpenAIRE
Journal :
The Astrophysical Journal
Accession number :
edsair.doi.dedup.....8dfcc4d0ada4e7ffb53769791d49e1f6
Full Text :
https://doi.org/10.1086/375528