Toward the full test of the nuMSM sterile neutrino dark matter model with Athena

Abstract

We discuss the potential of Athena X-ray telescope, in particular of its X-ray Integral Field Unit (X-IFU), for detection of the signal from the light-weight decaying dark matter with mass in the keV range. We show that high energy resolution and large collection area of X-IFU will provide an improvement of sensitivity which will be sufficient for the full test of the neutrino Minimal extension of the Standard Model (nuMSM). Search for the narrow spectral line produced by the decay of the dark matter sterile neutrino in the spectra of dwarf spheroidal galaxies with X-IFU will explore the whole allowed range masses and mixing angles of the nuMSM lightest sterile neutrino and in this way either to find the dark matter signal or rule out the nuMSM model.

To match the accepted version

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Cited by in corpus (29)

• Sterile Neutrino Dark Matter
• Sterile neutrinos in cosmology
• Neutrinoless double beta decay versus other probes of heavy sterile neutrinos
• (Almost) Closing the $\nu$MSM Sterile Neutrino Dark Matter Window with NuSTAR
• Astrophysical constraints on resonantly produced sterile neutrino dark matter
• XENON1T excess from anomaly-free ALP dark matter and its implications for stellar cooling anomaly
• Long-Exposure NuSTAR Constraints on Decaying Dark Matter in the Galactic Halo
• Strong constraints on decay and annihilation of dark matter from heating of gas-rich dwarf galaxies
• Decaying dark matter search with NuSTAR deep sky observations
• Intimate Relationship Between Sterile Neutrino Dark Matter and $\Delta N_{\mathrm{eff}}$
• Lifting the core-collapse supernova bounds on keV-mass sterile neutrinos
• Thermalizing sterile neutrino dark matter
• Global fits of axion-like particles to XENON1T and astrophysical data
• Searches for sterile neutrinos and axionlike particles from the Galactic halo with eROSITA
• Probing the Milky Way's Dark Matter Halo for the 3.5 keV Line
• Superradiant axion clouds around asteroid-mass primordial black holes
• THESEUS Insights into ALP, Dark Photon and Sterile Neutrino Dark Matter
• eXTP perspectives for the $\nu$MSM sterile neutrino dark matter model
• Self-interacting sterile neutrino dark matter: the heavy-mediator case
• Searching for Sterile Neutrino with X-ray Intensity Mapping
• Axion Dark Matter from Lepton flavor-violating Decays
• What if ALP dark matter for the XENON1T excess is the inflaton
• Polarization of photons emitted by decaying dark matter
• A Search for the 3.5 keV Line from the Milky Way's Dark Matter Halo with HaloSat
• Constraining Sterile Neutrino Dark Matter in the Milky Way Halo with Swift-XRT
• Search for primordial black hole dark matter with X-ray spectroscopic and imaging satellite experiments and prospects for future satellite missions
• Towards Testing Sterile Neutrino Dark Matter with Spectrum-Roentgen-Gamma Mission
• A sensitive search for unknown spectral emission lines in the diffuse X-ray background with XMM-Newton
• Exploring Ultralight Scalar Assistance in Sterile Neutrino Dark Matter: Cold Spectrum and Unusual X/Gamma-ray Signatures