Solar Mass Black Holes From Asymmetric Dark Matter

November 28, 2018

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CP3-Origins reseracher Chris Kouvaris published recently a paper in the Phys. Rev. Lett., proposing with his collaborators the possibility of ~1 solar mass black holes of non-primordial origin.
Astrophysical black holes produced as the end stage in the life of a supermassive star are expected to be heaver than ~2.5 solar masses. Therefore one expects that
solar mass black holes (if observed) can only be of primordial origin. However, the paper argues that this is not necessarily true, because under some generic conditions asymmetric dark matter could effectively convert neutron stars to ~1 solar mass black holes. This scenario will be tested soon with gravitational wave detectors like LIGO, which could lead to severe constraints on the properties of dark matter.

For more information, see the paper.