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arXiv 0710.0490astro-ph
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星系核动力学:质量分离和碰撞

Dynamics of galactic nuclei: Mass segregation and collisions

Marc Freitag, James E. Dale, Ross P. Church, Melvyn B. Davies

摘要:

质量低于~ 1 e7 Msun的大质量黑洞(MBH)很可能位于致密恒星核的中心,这些恒星核由两体弛豫、与MBH的密切相互作用和直接碰撞形成。在这方面的贡献,我们强调恒星质量的黑洞的质量分离到最里面的十分之一秒差距的作用,并指出恒星之间的流体动力学碰撞的重要性。在银河系的中心,碰撞一定会影响巨星和一些S星。

英文摘要:

Massive black holes (MBHs) with a mass below ~ 1e7 Msun are likely to reside at the centre of dense stellar nuclei shaped by 2-body relaxation, close interactions with the MBH and direct collisions. In this contribution, we stress the role of mass segregation of stellar-mass black holes into the innermost tenths of a parsec and point to the importance of hydrodynamical collisions between stars. At the Galactic centre, collisions must affect giant stars and some of the S-stars.

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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