THE SPIN-FLIP PHENOMENON IN SUPERMASSIVE BLACK HOLE BINARY MERGERS
THE SPIN-FLIP PHENOMENON IN SUPERMASSIVE BLACK HOLE BINARY MERGERS
复制标题
超大质量黑洞双星合并中的自旋翻转现象
DOI：
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发表时间：
2007
期刊：
影响因子：
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通讯作者：
P. Biermann
中科院分区：
文献类型：
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作者：
L. Gergely;P. Biermann
大质量合并黑洞将是低频强大引力波的主要来源，并将使我们能够测试与接近双星黑洞合并的候选星系的广义相对论。在本文中，我们确定了两个黑洞的典型质量比，但证明了引力辐射成为主要耗散效应(超过动力摩擦)的距离不取决于质量比，但引力波发射区的动力学演化取决于质量比。对于典型的质量比范围，合并的最后阶段之前是主黑洞的快速进动和随后的自旋翻转。这已经发生在感应阶段，因此可以用后牛顿技术进行解析描述。然后，我们用超盘识别射电星系，在这些星系中，快速进动的喷流有效地产生了强大的风，携带了环境气体，产生了厚盘的外观。因此，这些特定的星系可能会在不久的将来发生两个黑洞的合并。
Massive merging black holes will be the primary sources of powerful gravitational waves at low frequency, and will permit us to test general relativity with candidate galaxies close to a binary black hole merger. In this paper, we identify the typical mass ratio of the two black holes but then show that the distance where gravitational radiation becomes the dominant dissipative effect (over dynamical friction) does not depend on the mass ratio; however, the dynamical evolution in the gravitational wave emission regime does. For the typical range of mass ratios the final stage of the merger is preceded by a rapid precession and a subsequent spin-flip of the main black hole. This already occurs in the inspiral phase, therefore can be described analytically by post-Newtonian techniques. We then identify the radio galaxies with a superdisk as those in which the rapidly precessing jet effectively produces a powerful wind, entraining the environmental gas to produce the appearance of a thick disk. These specific galaxies are thus candidates for a merger of two black holes to happen in the astronomically near future.
影响因子：
8.6
作者：
José A. González;U. Sperhake;B. Brügmann;M. Hannam;S. Husa
通讯作者：
José A. González;U. Sperhake;B. Brügmann;M. Hannam;S. Husa