Color dependence of clustering properties of Luminous Red Galaxies (LRGs)

Details Color dependence of clustering properties of Luminous Red Galaxies (LRGs) Color dependence of clustering properties of Luminous Red Galaxies (LRGs)

Oct 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009ap%26ss.323..273d&link_type=abstract

Astrophysics and Space Science, Volume 323, Issue 3, pp.273-279

Astronomy and Astrophysics

Astrophysics

2

Galaxy: Fundamental Parameters, Galaxy: Large Scale Structure

Scientific paper

From the approximately volume-limited Luminous Red Galaxy (LRG) sample of the Sloan Digital Sky Survey Data Release 6 (SDSS DR6), we construct three LRG samples with different g-r color, which have the nearly same number density, to investigate the color dependence of clustering properties of LRGs. It is found that the blue galaxies have a more filamentary distribution than red galaxies, and that the bluest LRGs preferentially inhabit the dense groups and clusters. But in three LRG samples with different u-g color, we do not observe the tendency for clustering properties of LRGs to significantly change with color. We preferentially conclude that the clustering properties of LRGs are not strongly correlated with colors.

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