The Southern SHARC catalogue:: a ROSAT survey for distant galaxy clusters

被引:34
作者
Burke, DJ
Collins, CA
Sharples, RM
Romer, AK
Nichol, RC
机构
[1] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA
[2] Liverpool John Moores Univ, Astrophys Res Inst, Birkenhead CH41 1LD, Merseyside, England
[3] Univ Durham, Dept Phys, Durham DH1 3LE, England
[4] Carnegie Mellon Univ, Dept Phys, Pittsburgh, PA 15213 USA
关键词
catalogues; surveys; galaxies : clusters : general; X-rays : galaxies : clusters;
D O I
10.1046/j.1365-8711.2003.06378.x
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
X-ray selection provides a way of creating well-defined samples of distant clusters free from projection effects and with a well-understood selection function. This paper describes the creation of one such catalogue - the Southern Serendipitous High-redshift Archival ROSAT Cluster (SHARC) survey - which covers an area of 17.7 deg(2) and consists of 32 clusters with redshifts between 0.05 and 0.7 and X-ray luminosities between 7 x 10(42) and 4 x 10(44) erg s(-1): the high-redshift subsample contains 16 clusters with z greater than or equal to 0.3 and X-ray luminosities greater than 2 x 10(43) erg s(-1) (luminosities are quoted for the 0.5-2.0 keV energy band). The catalogue is in good agreement with those of other ROSAT cluster surveys for those fields in common. The high-redshift sample is consistent with there being no evolution in the cluster X-ray luminosity function at luminosities similar to10(44) erg s(-1): the implications of this work have been described elsewhere.
引用
收藏
页码:1093 / 1108
页数:16
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