Where to find a dark matter sterile neutrino?
Astrophysics
2008-11-26 v3
Abstract
We propose a strategy of how to look for dark matter (DM) particles possessing a radiative decay channel and derive constraints on their parameters from observations of X-rays from our own Galaxy and its dwarf satellites. When applied to the sterile neutrinos in keV mass range, it allows a significant improvement of restrictions to its parameters, as compared with previous works.
Cite
@article{arxiv.astro-ph/0603660,
title = {Where to find a dark matter sterile neutrino?},
author = {A. Boyarsky and A. Neronov and O. Ruchayskiy and M. Shaposhnikov and I. Tkachev},
journal= {arXiv preprint arXiv:astro-ph/0603660},
year = {2008}
}
Comments
5 pp, revtex; v3: 1-sigma limits have been replaced by more conservative 3-sigma limits, a picture illustrating the data analysis methods has been aded