论文标题

从观察结果上对PBH作为暗物质的限制:评论

Constraints on PBH as dark matter from observations: a review

论文作者

Oncins, Marc

论文摘要

原始黑洞(PBHS)是暗物质的引人入胜的候选人,尽管它受到了严格的约束。这篇综述深入介绍了这些观察性约束,尤其是在他们的细微差别和不确定性方面。尽管它们的起源各不相同,但假定标准的PBH形成路径是通货膨胀后扰动的崩溃,这应该在某些尺度上在CMB中可见信号。其他约束来自微透镜调查,这些调查严重限制了PBH作为太阳能中的暗物质到卫星范围,但是关于较低的质量范围的结果下降。引力波信号和霍金辐射中的PBH蒸发也可以实现有用的探针,但是前者需要下一代实验,然后再制定超过太阳能质量范围的约束,并且更晚的限制在$ 10^{-16} \ rm M _ {\ rm m _ {\ odot} $中。大量PBH存在其他动力和积聚约束。还必须给予护理,因为所有这些约束都可以从单色和扩展的质量分布及其聚类程度之间产生不同的含义。除了所有这些问题,原始黑孔仍然存在一个窗口,这是所有暗物质,这是$ 10^{ - 16} $和$ 10^{ - 11} \ rm m _ {\ odot} $之间的所有暗物质。

Primordial black holes (PBHs) are a fascinating candidate for being the dark matter, albeit one which has been heavily constrained. This review presents an in depth look at those observational constraints, particularly at their nuances and uncertainties. Despite their varied origins, the standard PBH formation path is assumed to be collapse of perturbations after inflation, which should leave signals visible in the CMB at certain scales. Other constraints come from microlensing surveys, which severely limit PBHs as dark matter in the solar to satellite range, but there are diminishing results in regards to lower mass ranges. Gravitational waves signals and PBH evaporation from Hawking radiation also make for useful probes, but the former requires the next generation of experiments before making constraints beyond the solar mass range, and the later is severely limited above $10^{-16} \rm M_{\odot}$. Other dynamical and accretion constraints exist for PBH of large masses. Care also has to be given, as all these constraints can carry different implications coming from differences between monochromatic and extended mass distributions, and their degree of clustering. Beyond all these issues, a window still exists for primordial black holes to be all of the dark matter between $10^{-16}$ and $10^{-11} \rm M_{\odot}$

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