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

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

2002-12-04

arxiv.org/abs/astro-ph/0212085v1

Astrophys.J.585:L5-L10,2003

Astronomy and Astrophysics

Astrophysics

submitted to ApJL

Scientific paper

10.1086/374238

We study the mean environments of galaxies in the Sloan Digital Sky Survey as a function of rest-frame luminosity and color. Overdensities in galaxy number are estimated in $8 h^{-1} \mathrm{Mpc}$ and $1 h^{-1} \mathrm{Mpc}$ spheres centered on $125,000$ 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.

Affiliated with

Also associated with

No associations

Rating

The overdensities of galaxy environments as a function of luminosity and color does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The overdensities of galaxy environments as a function of luminosity and color, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The overdensities of galaxy environments as a function of luminosity and color will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-264110