All-sky limits on Sterile Neutrino Galactic Dark Matter obtained with SRG/ART-XC after two years of operations
arXiv:2303.12673 · doi:10.1103/PhysRevD.109.L021301
Abstract
Dark matter sterile neutrinos radiatively decay in the Milky Way, which can be tested with searches for almost monochromatic photons in the X-ray cosmic spectrum. We analyse the data of SRG/ART-XC telescope operated for two years in the all-sky survey mode. With no significant hints in the Galactic diffuse X-ray spectrum we explore models with sterile neutrino masses in 12-40 keV range and exclude corresponding regions of sterile-active neutrino mixing.
5 pages, 5 figures. Published in Phys. Rev. D
References in corpus (10)
- The SRG X-ray orbital observatory, its telescopes and first scientific results
- Sterile neutrino dark matter as a consequence of nuMSM-induced lepton asymmetry
- Sterile Neutrinos
- The ART-XC telescope on board the SRG observatory
- Direct X-ray Constraints on Sterile Neutrino Warm Dark Matter
- The velocity dispersion and mass profile of the Milky Way
- A deep search for decaying dark matter with XMM-Newton blank-sky observations
- Long-Exposure NuSTAR Constraints on Decaying Dark Matter in the Galactic Halo
- An X-ray Spectroscopic Search for Dark Matter in the Perseus Cluster with Suzaku
- Correlation Analysis of Decaying Sterile Neutrino Dark Matter in the Context of the SRG Mission
Cited by in corpus (3)
- Strong limits on keV-scale galactic sterile neutrino dark matter with stray light from NuSTAR after 11 years of operation
- Constraints on the parameters of keV-scale mass annihilating Dark Matter obtained with SRG/ART-XC observations
- Spontaneous CP violation, sterile neutrino dark matter, and leptogenesis