New Venues in Formation and Detection for Primordial Black Hole Dark Matter

Volodymyr Takhistov

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arXiv · 1908.01464

New Venues in Formation and Detection for Primordial Black Hole Dark Matter

Volodymyr Takhistov

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Abstract

Primordial black holes (PBHs) are not as exotic as once thought and constitute a compelling non-particle dark matter (DM) candidate. We present a novel general PBH formation mechanism from scalar field fragmentation, which does not suffer from the inflaton potential fine-tuning that plagues many of the standard PBH formation models. We discuss how interactions of compact stars with very small sub-lunar/asteroid-size PBHs, which reside in the open window of parameter space where PBHs can constitute all of DM, allow for a slew of new astrophysical signatures that could shed light on PBH DM and are particularly interesting in the era of multi-messenger astronomy.

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Volodymyr Takhistov. 2019-08-05. New Venues in Formation and Detection for Primordial Black Hole Dark Matter. https://arxiv.org/abs/1908.01464

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