Accounting for the Unresolved X-ray Background with Sterile Neutrino Dark Matter

Abstract

We consider a scenario where keV sterile neutrinos constitute all of the currently inferred dark matter abundance, whose radiative decays could potentially account for the flux contributions to the X-ray background attributed to unresolved sources. Here we apply integrated flux methods to results from the observations of the North and South Chandra deep fields in order to deduce constraints on the sterile neutrino mass-mixing parameters.

To be published in the conference proceedings for the ''13th International Symposium on Particles, Strings and Cosmology'' (PASCOS-07), by the American Institute of Physics (AIP)