论文标题
来自旋转黑洞周围磁盘的重力波：完全相对论的模拟
Gravitational Waves from Disks Around Spinning Black Holes: Simulations in Full General Relativity
论文作者
论文摘要
我们介绍了自我磨碎的托里的完全普通的数值演变，周围旋转黑色孔，无量纲自旋$ a/m = 0.7 $平行或平行于磁盘角动量。初始磁盘对流体动力的帕帕洛伊岛 - 普林格的不稳定性不稳定，这会使它们生长持续的轨道物质团块。评估黑洞旋转对不稳定性生长和饱和的影响。我们发现，不稳定性的行为与先前具有非旋转黑洞的模拟相似，并且由于自旋诱导的磁盘轨道时期变化而导致频率变化。这些系统产生了丰富的引力波，我们通过当前和未来的引力波观测值分析了它们的可检测性，以分析大量质量的范围。 We find that systems of $10 M_\odot$ - relevant for black hole-neutron star mergers - are detectable by Cosmic Explorer out to $\sim300$ Mpc, while DECIGO (LISA) will be able to detect systems of $1000 M_\odot$ ($10^5M_\odot$) - relevant for disks forming in collapsing supermassive stars - out to cosmological $ z \ sim5 $的红移（$ z \ sim 1 $）。计算这些系统的吸积率，我们发现这些系统也可能是一致的电磁信号来源。
We present fully general-relativistic numerical evolutions of self-gravitating tori around spinning black holes with dimensionless spin $a/M = 0.7$ parallel or anti-parallel to the disk angular momentum. The initial disks are unstable to the hydrodynamic Papaloizou-Pringle Instability which causes them to grow persistent orbiting matter clumps. The effect of black hole spin on the growth and saturation of the instability is assessed. We find that the instability behaves similarly to prior simulations with non-spinning black holes, with a shift in frequency due to spin-induced changes in disk orbital period. Copious gravitational waves are generated by these systems, and we analyze their detectability by current and future gravitational wave observatories for large range of masses. We find that systems of $10 M_\odot$ - relevant for black hole-neutron star mergers - are detectable by Cosmic Explorer out to $\sim300$ Mpc, while DECIGO (LISA) will be able to detect systems of $1000 M_\odot$ ($10^5M_\odot$) - relevant for disks forming in collapsing supermassive stars - out to cosmological redshift of $z\sim5$ ($z\sim 1$). Computing the accretion rate of these systems we find that these systems may also be promising sources of coincident electromagnetic signals.
