星系并合中引力辐射对黑洞的约束碰撞速度
Constraining Recoiling Velocities of Black Holes Ejected by Gravitational Radiation in Galaxy Mergers
摘要：
最近的广义相对论模拟表明，两个自旋黑洞（BH）的合并可以导致BH残余物的反冲速度高达数千km/s，这是引力辐射发射的结果。重要的是，吸积盘在气体轨道速度大于喷射速度的区域内保持与喷射BH的结合。我们考虑了反冲反冲半径与宽线区（BLR）半径一致的情况。我们表明，在这种情况下，观测到的极化数据的吸积盘发射允许确定的反冲速度的值。我们给出了活动星系核反冲速度的估计与确定的偏振数据。
英文摘要：
Recent general relativistic simulations have shown that the coalescence of two spinning black holes (BH) can lead to recoiling speeds of the BH remnant of up to thousands of km/s as a result of the gravitational radiation emission. It is important that the accretion disc remains bound to ejected BH within the region where the gas orbital velocity is larger than the ejection speed. We considered the situation when the recoiling kick radius coincides with the radius of the broad line region (BLR). We show that in this situation the observed polarization data of accretion disk emission allow to determine the value of the recoil velocity. We present the estimates of the kick velocity for AGN with determined polarization data.
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