Neutron stars as dark matter probes
By Arnaud de Lavallaz, M. Fairbairn. 2010
212 citations recorded by the source corpus.
We examine whether the accretion of dark matter onto neutron stars could ever have any visible external effects. Captured dark matter which subsequently annihilates will heat the neutron stars, although it seems the effect will be too small to heat close neutron stars at an observable rate while those at the galactic center are obscured by dust. Nonannihilating dark matter would accumulate at the center of the neutron star. In a very dense region of dark matter such as that which may be found at the center of the galaxy, a neutron star might accrete enough to cause it to collapse within a period of time less than the age of the Universe. We calculate what value of the stable dark matter-nucleon cross section would cause this to occur for a large range of masses.
Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/1fa508e8ed1100b37b2ca073782491338e1d3bac
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Citations in the corpus
- Dynamical boson stars (2012, background): “This temperature increase could be observable in old stars, especially if they are close to the galactic center [240, 114].”
- Search for sub-solar mass ultracompact binaries in Advanced LIGO's second observing run (2019, unknown): “[31] Arnaud de Lavallaz and Malcolm Fairbairn.”