Strategy for Searching for a Dark Matter Sterile Neutrino | Zendy

Alexey Boyarsky | Zendy; A. Neronov | Zendy; Oleg Ruchayskiy | Zendy; Mikhail Shaposhnikov | Zendy; I. Tkachev | Zendy

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Strategy for Searching for a Dark Matter Sterile Neutrino

Author(s) -

Alexey Boyarsky,

A. Neronov,

Oleg Ruchayskiy,

Mikhail Shaposhnikov,

I. Tkachev

Publication year - 2006

Publication title -

physical review letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.688

H-Index - 673

eISSN - 1079-7114

pISSN - 0031-9007

DOI - 10.1103/physrevlett.97.261302

Subject(s) - sterile neutrino , physics , dark matter , neutrino , warm dark matter , galaxy , radiative transfer , astrophysics , range (aeronautics) , particle physics , dwarf galaxy , hot dark matter , neutrino oscillation , cosmology , dark energy , optics , materials science , composite material

We propose a strategy of how to look for dark matter (DM) particlespossessing a radiative decay channel and derive constraints on their parametersfrom observations of X-rays from our own Galaxy and its dwarf satellites. Whenapplied to the sterile neutrinos in keV mass range, it allows a significantimprovement of restrictions to its parameters, as compared with previous works.Comment: 5 pp, revtex; v3: 1-sigma limits have been replaced by more conservative 3-sigma limits, a picture illustrating the data analysis methods has been ade

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