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

作     者：Zhen-Zhen Qin Hai-Guang Xu Jing-Ying Wang Jun-Hua Gu 

作者机构：Department of Physics Shanghai Jiao Tong University National Astronomical ObservatoriesChinese Academy of Sciences 

出 版 物：《Research in Astronomy and Astrophysics》 (天文和天体物理学研究（英文版）)

年 卷 期：2013年第13卷第10期

页      面：1155-1162页

核心收录：

学科分类：07[理学] 070401[理学-天体物理] 0704[理学-天文学] 

基　　金：Supported by the National Natural Science Foundation of China(Grant Nos. 10878001, 10973010 and 11125313) the National Basic Research Program of China (973 Program Grant Nos. 2009CB824900 and 2009CB824904) the Shanghai Science and Technology Commission (Program of Shanghai Subject Chief Scientist Grant Nos. 12XD1406200 and 11DZ2260700) 

主　　题：galaxies:clusters:general galaxies:evolution galaxies:halos—intergalactic medium X rays:galaxies:clusters 

摘      要：We present a study of a fossil cluster,SDSS J0150–1005（z 0.364）,with high spatial resolution based on the imaging spectroscopic analysis of Chandra *** Chandra X-ray image shows a relaxed and symmetric morphology,which indicates that SDSS J0150–1005 is a well-developed galaxy cluster with no sign of a recent *** to the isothermal model,its global gas temperature is 5.73±0.80 keV,and the virial mass is 6.23±1.34×1014M⊙.Compared with the polytropic temperature model,the mass calculated based on the isothermal model is overestimated by 49%±*** central gas entropy,S0.1 r200=143.9±18.3 keV cm2,is significantly lower than the average value of normal galaxy clusters with similar *** results indicate that SDSS J0150–1005 formed during an early epoch.