论文标题
测试带有光学望远镜原始黑洞的随机重力波信号
Testing Stochastic Gravitational Wave Signals from Primordial Black Holes with Optical Telescopes
论文作者
论文摘要
如果PBHS居住在当前不受限制的“ Sublunar”质量范围内，则原始黑洞（PBH）可能构成暗物质（DM）的主要部分。源自通货膨胀期间产生的标量扰动的PBH自然可以在一类模型中以广泛的范围出现。这种PBH产生产生的随机重力波（GW）背景可以解释最近报道的北美纳米尔茨纳米纳斯氏症观测台引力波（Nanograv）Pulsar定时阵列数据信号，并且将在未来的GW观察中通过干涉仪型实验进行测试。我们表明，Subaru Hyper Suprime-CAM（HSC）微透镜数据已经探测了此类PBH DM的广泛质量功能，并且与检测到的候选事件一致。即将进行的HSC观察结果将能够对源自此类PBH DM生产方案的随机GW信号进行独立的确定测试。
Primordial black holes (PBHs) can constitute the predominant fraction of dark matter (DM) if PBHs reside in the currently unconstrained "sublunar" mass range. PBHs originating from scalar perturbations generated during inflation can naturally appear with a broad spectrum in a class of models. The resulting stochastic gravitational wave (GW) background generated from such PBH production can account for the recently reported North American Nanohertz Observatory for Gravitational Waves (NANOGrav) pulsar timing array data signal, and will be testable in future GW observations by interferometer-type experiments such as Laser Interferometer Space Antenna (LISA). We show that the broad mass function of such PBH DM is already being probed by Subaru Hyper Suprime-Cam (HSC) microlensing data and is consistent with a detected candidate event. Upcoming observations of HSC will be able to provide an independent definitive test of the stochastic GW signals originating from such PBH DM production scenarios.
