Merger Dynamics of the Pair of Galaxy Clusters--A399 and A401
文献类型：期刊论文
| 作者 | Yuan Qirong3; Yan Pengfei2; Yang Yanbin1; Xu Zhou1
|
| 刊名 | Chinese Journal of Astronomy and Astrophysics
 |
| 出版日期 | 2005 |
| 卷号 | 5期号:2页码:126 |
| ISSN号 | 1009-9271 |
| 英文摘要 | Convincing evidence for a past interaction between the two rich clusters A399 and A401 was recently found in the X-ray imaging observations. We examine the structure and dynamics of this pair of galaxy clusters. A mixture-modeling algorithm was applied to obtain a robust partition into two clusters, which allowed us to discuss the virial mass and velocity distribution of each cluster. Assuming that these two clusters follow a linear orbit and they have once experienced a close encounter, we model the binary cluster as a two-body system. As a result, four gravitationally bound solutions are obtained. The recent X-ray observations seem to favor a scenario in which the two clusters with a true separation of 5.4h-1 Mpc are currently expanding at 583 km s-1along a direction with a projection angle of 67.5°, and they will reach a maximum extent of 5.65 h-1 Mpc in about 1.0 h-1 Gyr. |
| 语种 | 英语 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/45876]  |
| 专题 | 中国科学院国家天文台 |
| 作者单位 | 1.中国科学院国家天文台 2.青岛科技大学 3.南京师范大学 |
| 推荐引用方式 GB/T 7714 | Yuan Qirong,Yan Pengfei,Yang Yanbin,et al. Merger Dynamics of the Pair of Galaxy Clusters--A399 and A401[J]. Chinese Journal of Astronomy and Astrophysics,2005,5(2):126. |
| APA | Yuan Qirong,Yan Pengfei,Yang Yanbin,&Xu Zhou.(2005).Merger Dynamics of the Pair of Galaxy Clusters--A399 and A401.Chinese Journal of Astronomy and Astrophysics,5(2),126. |
| MLA | Yuan Qirong,et al."Merger Dynamics of the Pair of Galaxy Clusters--A399 and A401".Chinese Journal of Astronomy and Astrophysics 5.2(2005):126. |
入库方式： OAI收割
来源：国家天文台
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