DEPENDENCE OF CLUSTERING ON GALAXY LUMINOSITY

Abstract

From the flux-limited main galaxy sample of SDSS DR6, we construct three volume-limited samples with different luminosities, and compare clustering properties of three samples. We find that the luminosity dependence of clustering properties does not exhibit a single trend, which is different between the sample fainter than the characteristic luminosity M* of the Schechter luminosity function and those brighter than M*. In the galaxy samples brighter than M*, the brighter galaxies have a more concentrated and less filamentary distribution as compared to the fainter ones. But when performing comparative studies of the luminosity dependence of clustering properties between the sample fainter than M* and ones brighter than M*, an opposite trend is found.