NAOC Open IR
achandrastudyofthemassivedistantgalaxyclustersdssj01501005
Qin Zhenzhen1; Xu Haiguang1; Wang Jingying1; Gu Junhua2
2013
Source Publicationresearchinastronomyandastrophysics
ISSN1674-4527
Volume13Issue:10Pages:1155
AbstractWe 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 observations. The 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 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 × 10~(14)M_⊙. Compared with the polytropic temperature model, the mass calculated based on the isothermal model is overestimated by 49%±11. The central gas entropy, S_(0.1r200) = 143.9 ± 18.3 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.
Language英语
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/41872
Collection中国科学院国家天文台
Affiliation1.上海交通大学
2.中国科学院国家天文台
Recommended Citation
GB/T 7714
Qin Zhenzhen,Xu Haiguang,Wang Jingying,et al. achandrastudyofthemassivedistantgalaxyclustersdssj01501005[J]. researchinastronomyandastrophysics,2013,13(10):1155.
APA Qin Zhenzhen,Xu Haiguang,Wang Jingying,&Gu Junhua.(2013).achandrastudyofthemassivedistantgalaxyclustersdssj01501005.researchinastronomyandastrophysics,13(10),1155.
MLA Qin Zhenzhen,et al."achandrastudyofthemassivedistantgalaxyclustersdssj01501005".researchinastronomyandastrophysics 13.10(2013):1155.
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