Can decaying sterile neutrinos account for all dark matter?

Research output: Contribution to journalArticlespeer-review

4 Citations (Scopus)


The recent discovery of unexplained X-ray line of 3.5--3.6 keV3.5--3.6 keV emitted from the Perseus cluster of galaxies and M31 and the excess X-ray line of 8.7 keV8.7 keV emitted from the Milky Way center may indicate that dark matter would decay. In this article, I show that approximately 80 % of dark matter being 7.1 keV sterile neutrinos and 20 % of dark matter being 17.4 keV sterile neutrinos can satisfactorily explain the observed X-ray lines and account for all missing mass. No free parameter is needed in this model. This scenario is also compatible with current robust observational constraints from the matter power spectrum in large-scale structures and would alleviate the challenges faced by the existing dark matter models. Copyright © 2016 Springer Science+Business Media Dordrecht.
Original languageEnglish
Article number116
JournalAstrophysics and Space Science
Early online dateMar 2016
Publication statusPublished - Apr 2016


Chan, M. H. (2016). Can decaying sterile neutrinos account for all dark matter? Astrophysics and Space Science, 361. Retrieved from


  • Dark matter
  • Sterile neutrinos


Dive into the research topics of 'Can decaying sterile neutrinos account for all dark matter?'. Together they form a unique fingerprint.