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arXiv 1902.04082astro-ph.COgr-qchep-phhep-th
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原初黑洞与共衰变暗物质

Primordial Black Holes and Co-Decaying Dark Matter

Julian Georg, Brandon Melcher, Scott Watson

摘要:

共衰变暗物质的模型导致了一个早期物质主导的时代-在BBN之前-这导致了暗物质子结构生长的增强。如果这些原始结构进一步坍缩,它们可以形成原始黑洞,提供额外的暗物质候选者。我们推导出这些黑洞的质量分数(这不是单色的),并考虑观测约束有多少暗物质可以包括在这些遗迹。我们发现,在许多情况下,它们可能是暗物质的重要组成部分。有趣的是,这些黑洞的质量可以接近太阳质量范围,这为产生像LIGO最近探测到的那些黑洞提供了一种新的机制。

英文摘要:

Models of Co-Decaying dark matter lead to an early matter dominated epoch -- prior to BBN -- which results in an enhancement of the growth of dark matter substructure. If these primordial structures collapse further they can form primordial black holes providing an additional dark matter candidate. We derive the mass fraction in these black holes (which is not monochromatic) and consider observational constraints on how much of the dark matter could be comprised in these relics. We find that in many cases they can be a significant fraction of the dark matter. Interestingly, the masses of these black holes can be near the solar-mass range providing a new mechanism for producing black holes like those recently detected by LIGO.

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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