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arXiv 2108.12475astro-ph.COgr-qchep-ph
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原初黑洞在引力波干涉仪上的信号

Signals of primordial black holes at gravitational wave interferometers

Jonathan Kozaczuk, Tongyan Lin, Ethan Villarama

摘要:

原始黑洞(PBH)可以作为原始标量扰动的结果在小尺度上形成。这PBH形成的情况下,相关的引力波(GW)签名从二阶GWs诱导的原始曲率扰动,并从GWs在早期PBH占主导地位的时代。我们调查的能力,下一代GW实验,包括BBO,LISA和CE,探测这种PBH形成的情况下,在很宽的质量范围。用GW观测站测量随机GW背景可以限制质量为1 e9 - 1 e27 g的PBH的允许参数空间。我们还讨论了来自无约束区域的可能GW源,在该区域中,光PBH(<1 e9 g)在蒸发之前暂时主导宇宙的能量密度。我们展示了PBH的形成如何影响GW观测站的原始功率谱,并提供了现有PBH界限所隐含的约束。

英文摘要:

Primordial black holes (PBHs) can form as a result of primordial scalar perturbations at small scales. This PBH formation scenario has associated gravitational wave (GW) signatures from second-order GWs induced by the primordial curvature perturbation, and from GWs produced during an early PBH dominated era. We investigate the ability of next generation GW experiments, including BBO, LISA, and CE, to probe this PBH formation scenario in a wide mass range. Measuring the stochastic GW background with GW observatories can constrain the allowed parameter space of PBHs for masses 1e9 - 1e27 g. We also discuss possible GW sources from an unconstrained region where light PBHs (< 1e9 g) temporarily dominate the energy density of the universe before evaporating. We show how PBH formation impacts the reach of GW observatories to the primordial power spectrum and provide constraints implied by existing PBH bounds.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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