Formation and coalescence of cosmological supermassive-black-hole binaries in supermassive-star collapse.
Formation and coalescence of cosmological supermassive-black-hole binaries in supermassive-star collapse.
复制标题
超大质量恒星塌陷中宇宙学超大质量黑洞双星的形成和合并。
DOI：
10.1103/physrevlett.111.151101
复制
发表时间：
2013
影响因子：
8.6
通讯作者：
P. Institute
中科院分区：
文献类型：
--
作者：
C. Reisswig;C. Ott;E. Abdikamalov;R. Haas;P. Mösta;E. S. Tapir;Caltech;P. Institute
我们研究可能在早期宇宙中形成的快速旋转的超大质量恒星的坍缩。通过使用三维广义相对论流体力学与全动态时空演化自一致地模拟从坍缩开始的动力学，我们证明了祖先中的种子扰动可以导致两个高自旋超大质量黑洞系统的形成。假设超大质量恒星的质量范围在10(4)-10(6)M[符号：见原文]，在红移z处可以观察到的强大引力辐射的发射下，这些恒星的吸入和合并与DECIGO或大爆炸观测者引力波天文台的引力波辐射大约等于或>到10。残体以无量纲自旋a*=0.9快速旋转。周围的吸积盘约占初始质量的10%。
We study the collapse of rapidly rotating supermassive stars that may have formed in the early Universe. By self-consistently simulating the dynamics from the onset of collapse using three-dimensional general-relativistic hydrodynamics with fully dynamical spacetime evolution, we show that seed perturbations in the progenitor can lead to the formation of a system of two high-spin supermassive black holes, which inspiral and merge under the emission of powerful gravitational radiation that could be observed at redshifts z is approximately equal or > to 10 with the DECIGO or Big Bang Observer gravitational-wave observatories, assuming supermassive stars in the mass range 10(4)-10(6)M[symbol: see text]. The remnant is rapidly spinning with dimensionless spin a*=0.9. The surrounding accretion disk contains ~10% of the initial mass.
大量原始晕的高分辨率研究
影响因子：
4.8
作者：
Schleicher;D. R. G;Schmidt;Niemeyer
通讯作者：
Niemeyer