A Chandra study of the massive, distant galaxy cluster SDSS J0150-1005

	A Chandra study of the massive, distant galaxy cluster SDSS J0150-1005
	Qin, Zhen-Zhen 1; Xu, Hai-Guang 1; Wang, Jing-Ying1 ; Gu, Jun-Hua2
刊名	RESEARCH IN ASTRONOMY AND ASTROPHYSICS
	2013-10-01
卷号	13 期号:10 页码:1155-1162
关键词	galaxies: clusters: general galaxies: evolution galaxies: halos intergalactic medium X- rays: galaxies: clusters
英文摘要	We present a study of a fossil cluster, SDSS J0150-1005 (z similar or equal to 0.364), with high spatial resolution based on the imaging spectroscopic analysis of Chandra observations. The ChandraX-ray image shows a relaxed and symmetricmorphology, which indicates that SDSS J0150-1005 is a well-developed galaxy cluster with no sign of a recent merger. According to the isothermal model, its global gas temperature is 5.73 +/- 0.80 keV, and the virial mass is 6.23 +/- 1.34 x 10(14) M-circle dot. Compared with the polytropic temperature model, the mass calculated based on the isothermal model is over-estimated by 49%+/- 11. The central gas entropy, S-0.1r200 = 1 4 3. 9 +/- 1 8. 3 keV cm(2), is significantly lower than the average value of normal galaxy clusters with similar temperatures. Our results indicate that SDSS J0150-1005 formed during an early epoch.
收录类别	SCI
语种	英语
WOS记录号	WOS:000325101300002
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/5900]
专题	国家天文台_星系宇宙学研究部
作者单位	1.Shanghai Jiao Tong Univ, Dept Phys, Shanghai 200240, Peoples R China 2.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
推荐引用方式 GB/T 7714	Qin, Zhen-Zhen,Xu, Hai-Guang,Wang, Jing-Ying,et al. A Chandra study of the massive, distant galaxy cluster SDSS J0150-1005[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2013,13(10):1155-1162.
APA	Qin, Zhen-Zhen,Xu, Hai-Guang,Wang, Jing-Ying,&Gu, Jun-Hua.(2013).A Chandra study of the massive, distant galaxy cluster SDSS J0150-1005.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,13(10),1155-1162.
MLA	Qin, Zhen-Zhen,et al."A Chandra study of the massive, distant galaxy cluster SDSS J0150-1005".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 13.10(2013):1155-1162.