Stability and observability of magnetic primordial black hole-neutron star collisions
Stability and observability of magnetic primordial black hole-neutron star collisions
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DOI：
10.1088/1475-7516/2023/06/017
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发表时间：
2022-09
影响因子：
6.4
通讯作者：
J. Estes;M. Kavic;S. Liebling;M. Lippert;J. Simonetti
中科院分区：
文献类型：
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作者：
J. Estes;M. Kavic;S. Liebling;M. Lippert;J. Simonetti
原始黑洞与中子星星的碰撞导致黑洞最终吞噬整个中子星星。然而，如果黑洞是带磁荷的，因此稳定地抵抗霍金辐射的衰变，结果可能会大不相同。在与中子星星碰撞时，磁性黑洞会很快停止。对于足够大的磁荷，我们表明，这种碰撞可以检测到的中子星星的旋转周期的突然变化，一个毛刺或anti-glitch.我们认为，磁性的原始黑洞，然后解决到中子星星的核心，不一定吞噬整个中子星星;系统可以达到一个长寿的，准稳定的平衡。由于黑洞与中子星星相比是微观的，因此与碰撞前相比，大多数恒星性质保持不变。然而，中子星星会变热，其表面磁场可能会发生变化，这两种效应都可能被观察到。
The collision of a primordial black hole with a neutron star results in the black hole eventually consuming the entire neutron star. However, if the black hole is magnetically charged, and therefore stable against decay by Hawking radiation, the consequences can be quite different. Upon colliding with a neutron star, a magnetic black hole very rapidly comes to a stop. For large enough magnetic charge, we show that this collision can be detected as a sudden change in the rotation period of the neutron star, a glitch or anti-glitch.We argue that the magnetic primordial black hole, which then settles to the core of the neutron star, does not necessarily devour the entire neutron star; the system can instead reach a long-lived, quasi-stable equilibrium. Because the black hole is microscopic compared to the neutron star, most stellar properties remain unchanged compared to before the collision. However, the neutron star will heat up and its surface magnetic field could potentially change, both effects potentially observable.