The environmental dependence of all the five band luminosities in the volume-limited main galaxy catalogs of the SDSS DR7

In this study, we performed a comparative study among all the five band luminosity distributions of galaxies in groups and isolated, to explore the environmental dependence of u-, g-, r-, i- and z-band luminosities. It is found that for r, i and z bands, isolated galaxies have a higher proportion of faint galaxies and a lower proportion of luminous galaxies than galaxy members of groups, for u-band an opposite trend can be observed. For the volume-limited Mr < −18 and Mr < −19 samples, we noted that the correlation between the u-band luminosity and the environment has two different trends in different luminosity regions. For the g-band, there are also the two different trends in different luminosity regions.