大质量吸积盘中的SMBH进食和恒星形成
SMBH feeding and star formation in massive accretion discs
摘要：
星系核是研究气体吸积到超大质量黑洞上的过程的独特实验室。与此同时，从恒星动力学的角度来看，由于它们的极端密度和质量，它们代表了具有挑战性的环境。越来越多的证据表明，星系核中恒星与气体之间的相互作用非常重要。富含气体的环境可能导致恒星的形成，而恒星的形成又可能调节中心质量的吸积。气体以大质量环面或吸积盘的形式通过引力或流体动力学相互作用进一步影响中央秒差距内的恒星动力学。偏心率振荡和能量耗散导致恒星向超大质量黑洞的逃逸速率增加。最后，但并非最不重要的是，与恒星动力学有关的过程可能会被即将到来的引力波探测器探测到。
英文摘要：
Galactic nuclei are unique laboratories for the study of processes connected with the accretion of gas onto supermassive black holes. At the same time, they represent challenging environments from the point of view of stellar dynamics due to their extreme densities and masses involved. There is a growing evidence about the importance of the mutual interaction of stars with gas in galactic nuclei. Gas rich environment may lead to stellar formation which, on the other hand, may regulate accretion onto the central mass. Gas in the form of massive torus or accretion disc further influences stellar dynamics in the central parsec either via gravitational or hydrodynamical interaction. Eccentricity oscillations on one hand and energy dissipation on the other hand lead to increased rate of infall of stars into the supermassive black hole. Last, but not least, processes related to the stellar dynamics may be detectable with forthcoming gravitational waves detectors.
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