Constraints on sterile neutrino dark matter from XMM-Newton observations of M33

E. Borriello, M. Paolillo, G. Miele, G. Longo, R. Owen

Research output: Contribution to journalArticlepeer-review

6 Scopus citations


Using archival XMM-Newton observations of the diffuse and unresolved components' emission in the inner disc of M33, we exclude the possible contribution from narrow line emission in the energy range 0.5-5keV more intense than 10-6-10-5ergs-1. Under the hypothesis that sterile neutrinos constitute the majority of the dark matter in M33, we use this result in order to put constraints on their parameter space in the 1-10keV mass range.

Original languageEnglish (US)
Pages (from-to)1628-1632
Number of pages5
JournalMonthly Notices of the Royal Astronomical Society
Issue number3
StatePublished - Sep 21 2012
Externally publishedYes


  • Astroparticle physics
  • Line: identification
  • Neutrinos
  • X-rays: galaxies

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science


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