Bisikalo Dmitry V, Zhilkin Andrey G
Institute of Astronomy of the Russian Academy of Sciences, 48 Pyatnitskaya st. 119017, Moscow, Russia.
An Acad Bras Cienc. 2021 May 17;93(suppl 1):e20200801. doi: 10.1590/0001-3765202120200801. eCollection 2021.
In the paper a scenario of an electromagnetic response formation from the merging of two black holes is considered. In this scenario it's assumed that the binary black hole is surrounded by an accretion disk. As a result of the black holes merging and mass loss, the accretion disk experiences a disturbance, which is accompanied by shock waves propagation of sufficiently high intensity. Heating of matter by shock waves leads to a sharp increase in the flux of electromagnetic radiation from the disk. The paper includes a calculated light curve, radiation spectrum, and the estimation of characteristic duration of the flare. This method can be used to discover of electromagnetic responses from gravitational-wave events, which registered by the LIGO (Laser Interferometer Gravitational-Wave Observatory) and the Virgo detectors. Supporting the registration of gravitational-wave events by observations in the electromagnetic channel has far-reaching prospects, since it corresponds to the multi-messenger approach to the study of astrophysical objects.
本文考虑了由两个黑洞合并形成电磁响应的一种情形。在这种情形中，假定双黑洞被一个吸积盘环绕。由于黑洞合并和质量损失，吸积盘受到扰动，这伴随着足够高强度的冲击波传播。冲击波对物质的加热导致来自吸积盘的电磁辐射通量急剧增加。本文给出了计算出的光变曲线、辐射光谱以及耀斑特征持续时间的估计。该方法可用于发现由激光干涉引力波天文台（LIGO）和处女座探测器记录到的引力波事件产生的电磁响应。通过电磁通道的观测来支持引力波事件的记录具有深远的前景，因为这符合对天体物理对象进行多信使研究的方法。
