The faint-end of the galaxy luminosity function in groups

Details The faint-end of the galaxy luminosity function in groups The faint-end of the galaxy luminosity function in groups

2005-07-06

arxiv.org/abs/astro-ph/0507144v2

Astronomy and Astrophysics

Astrophysics

8 pages, 10 figures, Submitted to Astronomy and Astrophysics

Scientific paper

10.1051/0004-6361:20053277

We compute the galaxy luminosity function in spectroscopically selected nearby groups and clusters. Our sample comprises 728 systems extracted from the third release of the Sloan Digital Sky Survey in the redshift range $0.03 < z < 0.06$ with virial mass range $10^{11}M_\odot < M_{vir} < 2\times 10^{14}M_\odot$. In order to compute the galaxy luminosity function, we apply a statistical background subtraction method following usually adopted techniques. In the $r$ band, the composite galaxy luminosity function shows a slope $\alpha=-1.3$ in the bright--end, and an upturn of the slope in the faint--end, $M_r\ga -18+5log(h)$, to slopes $-1.9<\alpha<-1.6$. We find that this feature is present also in the $i,g$ and $z$ bands, and for all explored group subsamples, irrespective of the group mass, number of members, integrated color or the presence of a hot intra-cluster gas associated to X-ray emission.

Affiliated with

Also associated with

No associations

Rating

The faint-end of the galaxy luminosity function in groups 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 faint-end of the galaxy luminosity function in groups, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The faint-end of the galaxy luminosity function in groups will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-611106