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Blocking the Hawking radiation

Martin Autzen* and Chris Kouvaris†

  • CP3-Origins, University of Southern Denmark, Campusvej 55, Odense 5230, Denmark

  • *autzen@cp3-origins.net
  • †kouvaris@cp3.sdu.dk
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Phys. Rev. D 89, 123519 – Published 25 June, 2014

DOI: https://doi.org/10.1103/PhysRevD.89.123519

Abstract

Some severe constraints on asymmetric dark matter are based on the scenario that certain types of weakly interacting massive particles can form mini-black holes inside neutron stars that can lead to their destruction. A crucial element for the realization of this scenario is that the black hole grows after its formation (and eventually destroys the star) instead of evaporating. The fate of the black hole is dictated by the two opposite mechanics, i.e., accretion of nuclear matter from the center of the star and Hawking radiation that tends to decrease the mass of the black hole. We study how the assumptions for the accretion rate can in fact affect the critical mass beyond which a black hole always grows. We also study to what extent degenerate nuclear matter can impede Hawking radiation due to the fact that emitted particles can be Pauli blocked at the core of the star.

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Phys. Rev. D 89, 123519– Published 25 June, 2014
  • Received 20 March 2014

© 2014 American Physical Society

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