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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...
From the volume-limited main galaxy sample of the Sloan Digital Sky Survey Data Release 6 (SDSS DR6), we construct an early-type sample and a late-type sample, and perform comparative studies of clustering properties between them. It is found that the distribution of late-type galaxies is more filamentary. In addition, in the late-type sample, the fractions of single, close double and multiple galaxies...
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