论文标题

与原始黑洞的重力波和伽马射线信号相关联

Correlating Gravitational Wave and Gamma-ray Signals from Primordial Black Holes

论文作者

Agashe, Kaustubh, Chang, Jae Hyeok, Clark, Steven J., Dutta, Bhaskar, Tsai, Yuhsin, Xu, Tao

论文摘要

小行星质量原始黑洞(PBH)可以解释观察到的暗物质丰度,同时与当前的间接检测约束保持一致。这些PBH可以通过amego和e-astrogam实验产生霍金辐射的伽马射线信号。引起这种可观察到的伽马射线信号的PBH具有来自大型原始曲率波动的宇宙起源。然后必须有一个由相同曲率波动产生的随机重力波(GW)背景。我们证明,所得的GW信号将很好地属于Lisa,Decigo,BBO和Einstein望远镜等未来探测器的灵敏度。来自观察到的伽玛射线和GW的多通间信号将允许精确测量产生PBH的原始曲率扰动。确实,我们认为两种观测类型之间所产生的相关性可以提供PBH的吸烟枪信号。

Asteroid-mass primordial black holes (PBH) can explain the observed dark matter abundance while being consistent with the current indirect detection constraints. These PBH can produce gamma-ray signals from Hawking radiation that are within the sensitivity of future measurements by the AMEGO and e-ASTROGAM experiments. PBH which give rise to such observable gamma-ray signals have a cosmic origin from large primordial curvature fluctuations. There must then be a companion, stochastic gravitational wave (GW) background produced by the same curvature fluctuations. We demonstrate that the resulting GW signals will be well within the sensitivity of future detectors such as LISA, DECIGO, BBO, and the Einstein Telescope. The multi-messenger signal from the observed gamma-rays and GW will allow a precise measurement of the primordial curvature perturbation that produces the PBH. Indeed, we argue that the resulting correlation between the two types of observations can provide a smoking-gun signal of PBH.

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