• Open Access

Dark matter and bubble nucleation in old neutron stars

A. Herrero, M. A. Pérez-García, J. Silk, and C. Albertus
Phys. Rev. D 100, 103019 – Published 21 November 2019

Abstract

We study the probability for nucleation of quark matter droplets in the dense cold cores of old neutron stars induced by the presence of a self-annihilating dark matter component, χ. Using a parametrized form of the equation of state for hadronic and quark phases of ordinary matter, we explore the thermodynamical conditions under which droplet formation is facilitated by the energy injection from χ self-annihilations. We obtain the droplet nucleation time as a function of the dark matter candidate mass, mχ. We discuss further observational consequences.

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  • Received 26 April 2019
  • Revised 25 September 2019

DOI:https://doi.org/10.1103/PhysRevD.100.103019

Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.

Published by the American Physical Society

Physics Subject Headings (PhySH)

Gravitation, Cosmology & Astrophysics

Authors & Affiliations

A. Herrero1, M. A. Pérez-García1,*, J. Silk2,3,4,†, and C. Albertus1,‡

  • 1Department of Fundamental Physics, University of Salamanca, Plaza de la Merced S/N E-37008, Salamanca, Spain
  • 2Institut d’Astrophysique, UMR 7095 CNRS, Sorbonne Université, 98bis Blvd Arago, 75014 Paris, France
  • 3Department of Physics and Astronomy, The Johns Hopkins University, Baltimore Maryland 21218, USA
  • 4Beecroft Institute of Particle Astrophysics and Cosmology, Department of Physics, University of Oxford, Oxford OX1 3RH, United Kingdom

  • *mperezga@usal.es
  • silk@iap.fr
  • albertus@usal.es

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Vol. 100, Iss. 10 — 15 November 2019

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