论文标题
Ligo是否检测到原始黑洞暗物质？ - 二进制黑洞形成的潮汐破坏
Has LIGO Detected Primordial Black Hole Dark Matter? -- Tidal Disruption in Binary Black Hole Formation
论文作者
论文摘要
经常检测$ \ sim 30 m _ {\ odot} $黑洞（BHS）的二进制合并，由激光干涉仪重力 - 引力波观测站（Ligo）重新点燃研究人员对原始BHS（PBHS）的兴趣（DM）。在这项工作中，我们查看了以DM分配的PBHS，单色质量为$ 30 m _ {\ odot} $，并检查了二进制组的相遇捕捉场景，DM Halo最密集的中央区域占据了DM Halo的最高区域。因此，我们特别注意存在的超级质量黑洞（SMBH）。通过这样做，我们发现了一个必要的工具，称为损失区，该工具补充了损耗锥的使用。我们发现，潮汐效应在影响二进制形成方面并不突出，这也证明不足以解释Ligo事件估计的总数，尤其是由于微验证事件限制了PBH中DM分数的质量质量，即从几乎统一到较小的顺序。同时，早期的二进制形成场景被证明是如此盛行，以至于Ligo信号又将PBH分数限制在百分之一以下。因此，人们应该对替代性PBH窗口和其他DM候选人更加信心。
The frequent detection of binary mergers of $\sim 30 M_{\odot}$ black holes (BHs) by the Laser Interferometer Gravitational-Wave Observatory (LIGO) rekindled researchers' interest in primordial BHs (PBHs) being dark matter (DM). In this work, we looked at PBHs distributed as DM with a monochromatic mass of $30 M_{\odot}$ and examined the encounter-capture scenario of binary formation, where the densest central region of DM halo dominates. Thus, we paid special attention to the tidal effect by the supermassive black hole (SMBH) present. In doing so, we discovered a necessary tool called loss zone that complements the usage of loss cone. We found that the tidal effect is not prominent in affecting binary formation, which also turned out insufficient in explaining the totality of LIGO's event rate estimation, especially due to a microlensing event constraining the DM fraction in PBH at the mass of interest from near unity to an order smaller. Meanwhile, early-universe binary formation scenario proves so prevailing that the LIGO signal in turn constrains the PBH fraction below one percent. Thus, people should put more faith in alternative PBH windows and other DM candidates.
