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arXiv 1210.2641astro-ph.HEgr-qc
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基于3:2 QPO共振假设的Swift J 164449.3+573451超大质量黑洞质量估计

Mass estimate of the Swift J 164449.3+573451 supermassive black hole based on the 3:2 QPO resonance hypothesis

M. A. Abramowicz, F. K. Liu

摘要:

一个休眠的雨燕源J 164449.3+573451(Sw 164449+57)最近经历了一次强大的爆发,很可能是由源中心的超大质量黑洞对恒星的潮汐破坏造成的。在爆发期间,在观测到的Sw 164449+57的X射线通量中检测到准周期振荡(QPO)。如果观测到的QPO属于“3:2双峰QPO”(第二频率未观测到),则Sw 164449+57中的黑洞质量相当低,M ~ 10^5 Msun,源属于中等质量的黑洞.此前已有多位作者指出该源的质量较低。

英文摘要:

A dormant Swift source J 164449.3+573451 (Sw 164449+57)recently experienced a powerful outburst, caused most probably by a tidal disruption of a star by the super-massive black hole at the center of the source. During the outburst, a quasi periodic oscillation (QPO) was detected in the observed X-ray flux from Sw 164449+57. We show that if the observed QPO belongs to a "3:2 twin peak QPO" (with the second frequency not observed), the mass of the black hole in Sw 164449+57 is rather low, M ~ 10^5 M_sun, and the source belongs to a class of intermediate mass black holes. The low mass of the source has been pointed out previously by several authors.

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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