Constraints on sterile neutrino as a dark matter candidate from the diffuse X-ray background

Sterile neutrinos with masses in the kilo-electronvolt range are viable candidates for the warm dark matter. We analyse existing data for the extragalactic diffuse X-ray background for signatures of sterile neutrino decay. The absence of a detectable signal within current uncertainties of background measurements puts model-independent constraints on allowed values of the sterile neutrino mass and mixing angle, which we present in this work. © 2006 RAS.


Published in:
Mon. Not. Roy. Astron. Soc., 370, 213-218
Year:
2006
Other identifiers:
Scopus: 2-s2.0-33746051659
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 Record created 2010-09-07, last modified 2018-03-17

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