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arXiv 1002.1277astro-ph.GA
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偏心盘不稳定性与背景星团的关系

The Eccentric Disc Instability: Dependency on Background Stellar Cluster

Ann-Marie Madigan

摘要:

在本文中,我们重新审视“偏心盘不稳定性”,发生在相干偏心盘的恒星轨道嵌入在星团的大质量黑洞(MBH),这导致恒星实现非常高或非常低的偏心率。恒星的偏心率是高是低很大程度上取决于周围星团的密度分布。在这里,我们讨论它的机制和银河系中心的影响,家庭至少有一个环MBH恒星盘。

英文摘要:

In this paper we revisit the "eccentric disc instability", an instability which occurs in coherently eccentric discs of stars orbiting massive black holes (MBHs) embedded in stellar clusters, which results in stars achieving either very high or low eccentricities. The preference for stars to attain higher or lower eccentricities depends significantly on the density distribution of the surrounding stellar cluster. Here we discuss its mechanism and the implications for the Galactic Centre, home to at least one circum-MBH stellar disc.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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