arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1906.04750astro-ph.COastro-ph.HEhep-ph
收藏

用各向同性的gamma ray背景约束太初黑洞质量

Constraining primordial black hole masses with the isotropic gamma ray background

Alexandre Arbey, Jérémy Auffinger, Joseph Silk

摘要:

原始黑洞可以代表$10^{17}-10^{22}\,$ g窗口中的全部或大部分暗物质。在这里,我们提出了一个扩展的PBH的质量$10^{13}-10^{18}\,$ g所产生的各向同性扩散伽马射线背景的约束。原始黑洞通过发射不超过观测背景的霍金辐射而蒸发。从Schwarzschild黑洞的单色分布推广到Kerr旋转黑洞的扩展质量函数,我们证明了对于近极值黑洞,这个质量窗口的下半部分是封闭的.

英文摘要:

Primordial black holes can represent all or most of the dark matter in the window $10^{17}-10^{22}\,$g. Here we present an extension of the constraints on PBHs of masses $10^{13}-10^{18}\,$g arising from the isotropic diffuse gamma ray background. Primordial black holes evaporate by emitting Hawking radiation that should not exceed the observed background. Generalizing from monochromatic distributions of Schwarzschild black holes to extended mass functions of Kerr rotating black holes, we show that the lower part of this mass window can be closed for near-extremal black holes.

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。

↑