Binary satellite galaxies
文献类型：期刊论文
| 作者 | Evslin, J |
| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
 |
| 出版日期 | 2014 |
| 卷号 | 440期号:2页码:1225-1232 |
| 关键词 | galaxies: dwarf galaxies: kinematics and dynamics Local Group |
| 英文摘要 | Suggestions have appeared in the literature that the following four pairs of Milky Way and Andromeda satellite galaxies are gravitationally bound: Draco and Ursa Minor, Leo IV and V, Andromeda I and III, and NGC 147 and 185. Assuming that a given pair is gravitationally bound, the Virial theorem provides a crude estimate of its total mass and so its instantaneous tidal radius. In the case of each pair except for Leo IV and Leo V, the estimated tidal radius is inferior to the separation between the two satellites, suggesting that these pairs are not currently gravitationally bound. Their proximities may be explained if each pair condensed from the remnants of a formerly gravitationally bound structure, but such a scenario is in tension with the absence of older pairs with a wider separation. |
| 学科主题 | Astronomy & Astrophysics |
| 收录类别 | SCI |
| WOS记录号 | WOS:000334742200022 |
| 公开日期 | 2016-05-03 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/225190]  |
| 专题 | 高能物理研究所_理论物理室 |
| 推荐引用方式 GB/T 7714 | Evslin, J. Binary satellite galaxies[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2014,440(2):1225-1232. |
| APA | Evslin, J.(2014).Binary satellite galaxies.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,440(2),1225-1232. |
| MLA | Evslin, J."Binary satellite galaxies".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 440.2(2014):1225-1232. |
入库方式： OAI收割
来源：高能物理研究所
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