ANTARES Galactic Ridge neutrino observations constrain DM-nucleon elastic scattering cross sections down to keV-scale DM masses via cosmic ray–dark matter deep inelastic scattering.
Did IceCube discover Dark Matter around Blazars?
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abstract
Models of blazar jets, that explain observations of their photon spectra, typically predict too few neutrinos to be possibly seen by existing telescopes. In particular, they fall short in reproducing the first neutrino ever detected from a blazar, TXS 0506+056, by IceCube in 2017. We predict larger neutrino fluxes by using the same jet models, extended to include deep inelastic scatterings between protons within the jets and sub-GeV dark matter (DM) around the central black holes of blazars. In this way we succeed in explaining neutrino observations of TXS 0506+056, for DM parameters allowed by all laboratory, direct and indirect searches. Our proposal will be tested by DM searches, as well as by the observation of more neutrinos from blazars. Our findings motivate to implement DM-nuclei interactions in jet models and to improve our knowledge of DM spikes around active galactic nuclei.
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Stellar gravitational heating reduces dark matter spike overdensities by 2-4 orders of magnitude and drives the inner slope to γ_χ ≈ 1.5 within a few Gyrs, remaining above NFW cusps.
Constraints on sub-GeV inelastic dark matter are derived from cosmic-ray cooling in NGC 1068 by including elastic and deep inelastic scattering in a vector-portal model.
citing papers explorer
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Galactic Center Neutrinos from Cosmic Ray-Dark Matter Interactions
ANTARES Galactic Ridge neutrino observations constrain DM-nucleon elastic scattering cross sections down to keV-scale DM masses via cosmic ray–dark matter deep inelastic scattering.
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Formation and Redshift Evolution of Dark Matter Spikes
Stellar gravitational heating reduces dark matter spike overdensities by 2-4 orders of magnitude and drives the inner slope to γ_χ ≈ 1.5 within a few Gyrs, remaining above NFW cusps.
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Probing Inelastic Dark Matter via Cosmic-Ray Upscattering in NGC 1068
Constraints on sub-GeV inelastic dark matter are derived from cosmic-ray cooling in NGC 1068 by including elastic and deep inelastic scattering in a vector-portal model.