Dependence of the clustering properties of galaxies on stellar velocity dispersion in the Main galaxy sample of SDSS DR10

被引：1

作者：

Deng, Xin-Fa ^{[1
]}

Song, Jun ^{[1
]}

Chen, Yi-Qing ^{[1
]}

Jiang, Peng ^{[1
]}

Ding, Ying-Ping ^{[1
]}

机构：

[1] Nanchang Univ, Sch Sci, Nanchang 330031, Jiangxi, Peoples R China

来源：

ASTROPHYSICS AND SPACE SCIENCE | 2014年 / 352卷 / 02期

基金：

美国国家科学基金会; 中国国家自然科学基金;

关键词：

Cosmology: large-scale structure of universe; Galaxies: fundamental parameters; DIGITAL SKY SURVEY; BLACK-HOLE MASS; REDSHIFT SURVEY; COLOR DEPENDENCE; LUMINOSITY; EVOLUTION;

D O I：

10.1007/s10509-014-1970-3

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Using two volume-limited Main galaxy samples of the Sloan Digital Sky Survey Data Release 10 (SDSS DR10), we investigate the dependence of the clustering properties of galaxies on stellar velocity dispersion by cluster analysis. It is found that in the luminous volume-limited Main galaxy sample, except at r=1.2, richer and larger systems can be more easily formed in the large stellar velocity dispersion subsample, while in the faint volume-limited Main galaxy sample, at ra parts per thousand yen0.9, an opposite trend is observed. According to statistical analyses of the multiplicity functions, we conclude in two volume-limited Main galaxy samples: small stellar velocity dispersion galaxies preferentially form isolated galaxies, close pairs and small group, while large stellar velocity dispersion galaxies preferentially inhabit the dense groups and clusters. However, we note the difference between two volume-limited Main galaxy samples: in the faint volume-limited Main galaxy sample, at ra parts per thousand yen0.9, the small stellar velocity dispersion subsample has a higher proportion of galaxies in superclusters (na parts per thousand yen200) than the large stellar velocity dispersion subsample.

引用

页码：833 / 838

页数：6

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