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arXiv 0812.0825astro-ph
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GUT尺度的原始黑洞:结果与限制

GUT-Scale Primordial Black Holes: Consequences and Constraints

Richard Anantua, Richard Easther, John T. Giblin

摘要:

在核合成开始之前蒸发的非常轻的原始黑洞群是不受约束的,除非衰变的黑洞留下稳定的遗迹。我们证明了从这些黑洞辐射的引力子Hawking将在当前宇宙中产生大量的高频引力波($10^{12}$ Hz或更高)的随机背景。这些黑洞可能会导致一个短暂的物质主导的膨胀时期。在这种情况下,原始宇宙可能暂时由“霍金星”的大集群主导,由此产生的引力波谱与原始黑洞的初始数密度无关。

英文摘要:

A population of very light primordial black holes which evaporate before nucleosynthesis begins is unconstrained unless the decaying black holes leave stable relics. We show that gravitons Hawking radiated from these black holes would source a substantial stochastic background of high frequency gravititational waves ($10^{12}$ Hz or more) in the present universe. These black holes may lead to a transient period of matter dominated expansion. In this case the primordial universe could be temporarily dominated by large clusters of "Hawking stars" and the resulting gravitational wave spectrum is independent of the initial number density of primordial 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。

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