A Dynamical Analysis of Twelve Clusters of Galaxies
A Dynamical Analysis of Twelve Clusters of Galaxies
复制标题
DOI：
10.1086/115982
复制
发表时间：
1991
期刊：
影响因子：
--
通讯作者：
T. Beers;K. Gebhardt;W. Forman;J. Huchra;C. Jones
中科院分区：
文献类型：
--
作者：
T. Beers;K. Gebhardt;W. Forman;J. Huchra;C. Jones
报告了 12 个丰富星团附近星系的 428 个新红移。观测到的星团 A85、A569、A957、A1069、A1185、A1750、A1991、A2063、A2440、A2589、A2593 和 A2657 表现出广泛的光学和 X 射线特性，从具有明显密集中心区域的极其明亮的 X 射线发射器，到在星系中表现出双峰或块状外观的星团， X 射线表面亮度分布。其中几个星团（和子星团）包含主星系，其多个核嵌入延伸的光晕中。讨论了每个簇的速度分布，并获得了动态质量估计
428 new redshifts for galaxies in the vicinity of twelve rich clusters are reported. The clusters observed, A85, A569, A957, A1069, A1185, A1750, A1991, A2063, A2440, A2589, A2593, and A2657, exhibit a wide range of optical and X-ray properties, from extremely luminous X-ray emitters with apparently dense central regions, to clusters which exhibit a bimodal or clumpy appearance in their galaxy and X-ray surface brightness distributions. Several of the clusters (and subclusters) contain dominant galaxies with multiple nuclei embedded in an extended luminous halo. The velocity distributions are discussed for each of these clusters, and dynamical mass estimates obtained