Comparisons of u -, g -, r -, i -, and z -band luminosity distributions between galaxy members of compact groups and isolated galaxies

摘要

To investigate the environmental dependence of u -, g -, r -, i -, and z -band luminosities, we perform comparative studies of luminosity distributions between galaxy members of compact groups (CGs) and isolated galaxies. It is found that for the 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 CGs, but for the u band an opposite trend is observed. The correlation between the g -band luminosity and the environment has different trends in different luminosity regions (© 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)