DYNAMICAL CAPTURE BINARY NEUTRON STAR MERGERS
DYNAMICAL CAPTURE BINARY NEUTRON STAR MERGERS
复制标题
动态捕获双中子星合并
DOI：
10.1088/2041-8205/760/1/l4
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发表时间：
2012
期刊：
影响因子：
--
通讯作者：
F. Pretorius
中科院分区：
文献类型：
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作者：
W. East;F. Pretorius
我们研究动态捕获二中子星星合并可能出现在致密的恒星区域，如球状星团。利用广义相对论流体动力学，我们发现这些合并可以导致迅速坍缩成黑洞或形成超大质量中子星星，这不仅取决于中子星星状态方程，而且取决于碰撞参数.我们还发现，这些合并可以产生高达太阳质量的十分之一的吸积盘和高达太阳质量的百分之几的未绑定喷射物质。我们评论的引力辐射和电磁瞬变，这些来源可能产生的。
We study dynamical capture binary neutron star mergers as may arise in dense stellar regions such as globular clusters. Using general-relativistic hydrodynamics, we find that these mergers can result in the prompt collapse to a black hole or in the formation of a hypermassive neutron star, depending not only on the neutron star equation of state but also on impact parameter. We also find that these mergers can produce accretion disks of up to a tenth of a solar mass and unbound ejected material of up to a few percent of a solar mass. We comment on the gravitational radiation and electromagnetic transients that these sources may produce.