Luminosity function and density field of the Sloan and Las Campanas Redshift Survey
Abstract
The luminosity function of galaxies of the Early Data Release of the Sloan Digital Sky Survey (SDSS) and the Las Campanas Redshift Survey (LCRS) is calculated. The luminosity function depends on redshift, density of the environment and is different for the Norther and Southern slice of SDSS. Luminosity functions is used to derive the number and luminosity density fields of galaxies of the SDSS and LCRS surveys with a grid size of 1 h^{-1} Mpc for flat cosmological models with \Omega_m=0.3 and \Omega_\Lambda =0.7. We find that the luminosity function depends on the density of the environment: in high-density regions brightest galaxies are more luminous than in low-density regions by a factor up to 5.
Keywords
Cite
@article{arxiv.astro-ph/0212327,
title = {Luminosity function and density field of the Sloan and Las Campanas Redshift Survey},
author = {G. Hütsi and J. Einasto and D. L. Tucker and E. Saar and M. Einasto and V. Müller and P. Heinämäki and S. S. Allam},
journal= {arXiv preprint arXiv:astro-ph/0212327},
year = {2010}
}
Comments
10 pages LaTeX text, 8 PostScript Figures, 1 jpg Figure (4a, 4b), submitted to Astronomy and Astrophysics