Constraints on primordial black holes as dark matter candidates from capture by neutron stars

@article{Capela2013ConstraintsOP,
  title={Constraints on primordial black holes as dark matter candidates from capture by neutron stars},
  author={F{\'a}bio Capela and M. Pshirkov and P. Tinyakov},
  journal={Physical Review D},
  year={2013},
  volume={87},
  pages={123524}
}
We investigate constraints on primordial black holes (PBHs) as dark matter candidates that arise from their capture by neutron stars (NSs). If a PBH is captured by a NS, the star is accreted onto the PBH and gets destroyed in a very short time. Thus, mere observations of NSs put limits on the abundance of PBHs. High DM densities and low velocities are required to constrain the fraction of PBHs in DM. Such conditions may be realized in the cores of globular clusters if the latter are of a… Expand
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