Can Neutron stars constrain Dark Matter?

Christoforos Kouvaris, Peter Tinyakov

Research output: Contribution to journalJournal articleResearchpeer-review


We argue that observations of old neutron stars can impose constraints on dark matter candidates even with very small elastic or inelastic cross section, and self-annihilation cross section. We find that old neutron stars close to the galactic center or in globular clusters can maintain a surface temperature that could in principle be detected. Due to their compactness, neutron stars can acrete WIMPs efficiently even if the WIMP-to-nucleon cross section obeys the current limits from direct dark matter searches, and therefore they could constrain a wide range of dark matter candidates.
Original languageEnglish
JournalPhysical Review D
Issue number6
Pages (from-to)063531
Publication statusPublished - 5. Apr 2010


  • astro-ph.GA
  • hep-ph


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