NAOC Open IR  > 星系宇宙学研究部
Mass discrepancy in galaxy clusters as a result of the offset between dark matter and baryon distributions
Shan, Huan Yuan1,2; Qin, Bo2; Zhao, Hong Sheng2,3
2010-10-21
发表期刊MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
卷号408期号:2页码:1277-1282
摘要Recent studies of lensing clusters reveal that it might be fairly common for a galaxy cluster that the X-ray centre has an obvious offset from its gravitational centre which is measured by strong lensing. We argue that if these offsets exist, then X-rays and lensing are indeed measuring different regions of a cluster, and may thus naturally result in a discrepancy in the measured gravitational masses by the two different methods. Here we investigate theoretically the dynamical effects of such lensing-X-ray offsets and compare with observational data. We find that for typical values, the offset alone can give rise to a factor of 2 difference between the lensing and X-ray-determined masses for the core regions of a cluster, suggesting that such 'offset effect' may play an important role and should not be ignored in our dynamical measurements of clusters.
关键词Gravitational Lensing: Strong Dark Matter X-rays: Galaxies: Clusters
DOI10.1111/j.1365-2966.2010.17209.x
收录类别SCI
语种英语
WOS记录号WOS:000282639100051
引用统计
文献类型期刊论文
条目标识符http://ir.bao.ac.cn/handle/114a11/7751
专题星系宇宙学研究部
作者单位1.Peking Univ, Sch Phys, Dept Astron, Beijing 100871, Peoples R China
2.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
3.Univ St Andrews, SUPA, St Andrews KY16 9SS, Fife, Scotland
推荐引用方式
GB/T 7714
Shan, Huan Yuan,Qin, Bo,Zhao, Hong Sheng. Mass discrepancy in galaxy clusters as a result of the offset between dark matter and baryon distributions[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2010,408(2):1277-1282.
APA Shan, Huan Yuan,Qin, Bo,&Zhao, Hong Sheng.(2010).Mass discrepancy in galaxy clusters as a result of the offset between dark matter and baryon distributions.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,408(2),1277-1282.
MLA Shan, Huan Yuan,et al."Mass discrepancy in galaxy clusters as a result of the offset between dark matter and baryon distributions".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 408.2(2010):1277-1282.
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Shan, Huan Yuan]的文章
[Qin, Bo]的文章
[Zhao, Hong Sheng]的文章
百度学术
百度学术中相似的文章
[Shan, Huan Yuan]的文章
[Qin, Bo]的文章
[Zhao, Hong Sheng]的文章
必应学术
必应学术中相似的文章
[Shan, Huan Yuan]的文章
[Qin, Bo]的文章
[Zhao, Hong Sheng]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。