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arXiv 1701.04762astro-ph.GA
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大质量黑洞附近的恒星动力学和恒星现象

Stellar Dynamics and Stellar Phenomena Near A Massive Black Hole

Tal Alexander

摘要:

大多数星系核都有一个巨大的黑洞(MBH),它的诞生和演化与它的宿主星系密切相关。MBH附近的独特条件:大质量奇异相对论性物体的陡峭势能中的高速度和密度,导致恒星诞生,演化,动力学和死亡的不寻常模式。一个复杂的动力机制网络,在多个时间尺度上运行,使恒星偏转到拦截MBH的轨道上。这样的近距离接触导致了与可观察到的签名和MBH及其恒星环境演化的后果的能量相互作用。星系核是天体物理实验室,测试和挑战我们对MBH形成,强引力,恒星动力学和恒星物理学的理解。我回顾从理论的角度来看,发生在MBH附近的恒星现象的范围很广,重点是在一个孤立的MBH附近的恒星动力学的作用,在一个轻松的恒星尖。

英文摘要:

Most galactic nuclei harbor a massive black hole (MBH), whose birth and evolution are closely linked to those of its host galaxy. The unique conditions near the MBH: high velocity and density in the steep potential of a massive singular relativistic object, lead to unusual modes of stellar birth, evolution, dynamics and death. A complex network of dynamical mechanisms, operating on multiple timescales, deflect stars to orbits that intercept the MBH. Such close encounters lead to energetic interactions with observable signatures and consequences for the evolution of the MBH and its stellar environment. Galactic nuclei are astrophysical laboratories that test and challenge our understanding of MBH formation, strong gravity, stellar dynamics, and stellar physics. I review from a theoretical perspective the wide range of stellar phenomena that occur near MBHs, focusing on the role of stellar dynamics near an isolated MBH in a relaxed stellar cusp.

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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