Radio luminosity function of brightest cluster galaxies

被引:29
作者
Yuan, Z. S. [1 ,2 ]
Han, J. L. [1 ]
Wen, Z. L. [1 ]
机构
[1] Chinese Acad Sci, Natl Astron Observ, 20A Datun Rd, Beijing 100012, Peoples R China
[2] Univ Chinese Acad Sci, Sch Astron, Beijing 100049, Peoples R China
基金
美国国家科学基金会;
关键词
galaxies: clusters: general; galaxies: luminosity function; mass function; DIGITAL-SKY-SURVEY; ACTIVE GALACTIC NUCLEI; STAR-FORMING GALAXIES; HEATING HOT ATMOSPHERES; FLUX-LIMITED SAMPLE; BLACK-HOLE MASS; COOLING FLOWS; 1.4; GHZ; REDSHIFT SURVEY; ABELL CLUSTERS;
D O I
10.1093/mnras/stw1125
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
By cross-matching the currently largest optical catalogue of galaxy clusters and the NVSS radio survey data base, we obtain a large complete sample of brightest cluster galaxies (BCGs) in the redshift range of 0.05 < z a parts per thousand currency sign 0.45, which have radio emission and redshift information. We confirm that more powerful radio BCGs tend to be these optically very bright galaxies located in more relaxed clusters. We derived the radio luminosity functions of the largest sample of radio BCGs, and find that the functions depend on the optical luminosity of BCGs and the dynamic state of galaxy clusters. However, the radio luminosity function does not show significant evolution with redshift.
引用
收藏
页码:3669 / 3678
页数:10
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