星系径向速度双峰分布星系团的结构。I. A1035
The Structure of Clusters with Bimodal Distributions of Galaxy Radial Velocities. I. A1035
摘要：
A1035星系团的结构（10 h32 m +40 d13 '，cz ~ 22000 km/s），其径向速度呈双峰分布（ΔV \approx 3000 km/s），用三种方法来确定星系团与早型星系的相对距离：校正了残差对星系星等、测光平面和基本平面的依赖关系的科门迪关系。利用俄罗斯科学院特殊天体物理观测站1米望远镜观测的数据和SDSS（DR 5）的观测数据，证明了A1035是由两个引力未结合的独立星系团组成的。这些星团的速度色散分别为566 km/s和610 km/s，质量在R_200范围内，分别为2.7 × 10^14和3.5 × 10^14 M_sun，符合哈勃定律。
英文摘要：
The structure of the A1035 cluster of galaxies (10h32m +40d13', cz ~ 22000 km/s), which exhibits a bimodal distribution of galaxy radial velocities (ΔV\approx 3000 km/s), is analyzed using three methods of determining the relative distances to clusters from early-type galaxies: the Kormendy relation corrected for the dependence of residuals on galaxy magnitude, the photometric plane, and the fundamental plane. We use the data obtained with the 1-m telescope of the Special Astrophysical Observatory of the Russian Academy of Sciences and SDSS (DR5) data to show that A1035 consists of two gravitationally unbound independent clusters. These clusters with the velocity dispersions of 566 km/s and 610 km/s and masses within R_200 equal to 2.7 10^14 and 3.5 10^14 M_sun, respectively, obey the Hubble law.
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