The clustering properties of Luminous Red Galaxies

et al. 2009

Astrophys Space Sci

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.

Section: Color Dependence Of Clustering Properties Of Lrgsmentioning

confidence: 99%

Section: Color Dependence Of Clustering Properties Of Lrgsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

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

et al. 2009

Astrophys Space Sci

“…For example, Zehavi et al (2005) found that clustering properties of LRGs are dependent on luminosity, with more luminous LRGs being yet more strongly clustered. However, Deng et al (2007b) and Deng et al (2008c) showed that there is no correlation between the luminosity distribution of LRGs and the environment. One possible explanation for these differences is that earlier studies were generally affected by sampling fluctuations or bias of statistical method that are difficult to quantify.…”

Section: Introductionmentioning

confidence: 99%

“…The Luminous Red Galaxy (LRG) sample (Eisenstein et al 2001) of the SDSS is a sample of luminous intrinsically red galaxies that extends fainter and farther than the SDSS Main galaxy sample. Some authors demonstrated that the luminosity dependence of LRG clustering or the environmental dependence of the LRG luminosity have been controversial (e.g., Zehavi et al 2005;Deng et al 2007bDeng et al , 2008cDeng et al ,d, 2009b. For example, Zehavi et al (2005) found that clustering properties of LRGs are dependent on luminosity, with more luminous LRGs being yet more strongly clustered.…”

Section: Introductionmentioning

confidence: 99%

Luminosity-Environment Relation in the Lowz Sample of the SDSS-III

et al. 2016

Open Astronomy

Abstract. In this work, we examine the environmental dependence of the u-, g-, r-, i-and z-band luminosities in the LOWZ sample of the Sloan Digital Sky Survey Data Release 10 (SDSS DR10). To decrease the radial selection effect, we divide the LOWZ sample into subsamples with a redshift bin size of ∆z = 0.01 and analyze the environmental dependence of luminosities for these subsamples in each redshift bin. It is found that all five band luminosities of the LOWZ galaxy sample in the redshift region z=0. 16-0.23 show substantial correlation with the local environment, especially in the redshift bins 0.19-0.20 and 0.20-0.21. The environmental dependence of all five band luminosities in the LOWZ galaxy sample becomes weak with increasing redshift, like the one in the apparent-magnitude limited Main galaxy sample.

The local environmental dependence of properties of Luminous Red Galaxies (LRGs) from the SDSS data release 6 (SDSS6)

Chen

et al. 2008

Astrophysics

Using the Luminous Red Galaxy (LRG) sample of the SDSS Data Release 6, we investigate the dependence of LRG properties on the local environment. For each LRG, the local three dimensional density within the distance to the 5th nearest galaxy is calculated. It turns out that there is no strong local environmental dependence of LRG morphologies, and that other galaxy properties do not present significant dependence on the local environment. We further calculate the local three dimensional galaxy density within the distance to the 10th nearest galaxy, and find that results are similar to those for local density within the distance to the 5th nearest galaxy.