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 journalArticle

10 Scopus citations

Abstract

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
Volume425
Issue number3
DOIs
StatePublished - Sep 21 2012
Externally publishedYes

Keywords

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

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

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