6533b82afe1ef96bd128c1b2
RESEARCH PRODUCT
Searching for sterile neutrino with X-ray intensity mapping
A. CaputoM. RegisM. Taososubject
Cosmology and Nongalactic Astrophysics (astro-ph.CO)X-ray telescopes; dark matter experiments; dark matter theory; power spectrumdark matter theoryAstrophysics::High Energy Astrophysical Phenomenadark matter experimentsAstrophysics::Instrumentation and Methods for AstrophysicsFOS: Physical sciencesAstrophysics::Cosmology and Extragalactic Astrophysicspower spectrumHigh Energy Physics - PhenomenologyHigh Energy Physics - Phenomenology (hep-ph)Astrophysics::Galaxy AstrophysicsAstrophysics - Cosmology and Nongalactic AstrophysicsX-ray telescopesdescription
The cosmological X-ray emission associated to the possible radiative decay of sterile neutrinos is composed by a collection of lines at different energies. For a given mass, each line corresponds to a given redshift. In this work, we cross correlate such line emission with catalogs of galaxies tracing the dark matter distribution at different redshifts. We derive observational prospects by correlating the X-ray sky that will be probed by the eROSITA and Athena missions with current and near future photometric and spectroscopic galaxy surveys. A relevant and unexplored fraction of the parameter space of sterile neutrinos can be probed by this technique.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2019-11-20 |