在NGC 1277中捕获的失控黑洞？
A Captured Runaway Black Hole in NGC 1277?
摘要：
最近的研究结果表明，英仙座星系团中的致密透镜星系NGC 1277包含一个大约100亿太阳质量的黑洞。这远远超过了在NGC 1277这样一个中等尺寸的星系中中央黑洞的预期质量。我们认为，这个巨大的黑洞是从附近的巨大星系NGC 1275中弹射出来的，随后被NGC 1277捕获。这次抛射是引力辐射反冲的结果，当时两个巨大的黑洞在两个巨大的椭圆星系合并后合并，形成了NGC 1275。这个黑洞在星系团核心徘徊，直到在与NGC 1277的近距离接触中被捕获。黑洞在星系团中的迁移可能是一种常见的现象。
英文摘要：
Recent results indicate that the compact lenticular galaxy NGC 1277 in the Perseus Cluster contains a black hole of approximately 10 billion solar masses. This far exceeds the expected mass of the central black hole in a galaxy of the modest dimensions of NGC 1277. We suggest that this giant black hole was ejected from the nearby giant galaxy NGC 1275 and subsequently captured by NGC 1277. The ejection was the result of gravitational radiation recoil when two large black holes merged following the merger of two giant ellipticals that helped to form NGC 1275. The black hole wandered in the cluster core until it was captured in a close encounter with NGC 1277. The migration of black holes in clusters may be a common occurrence.
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