Tidal Disruption Events and Dark Matter Scatterings with Neutrinos and Photons

Abstract

Stars can be tidally disrupted when passing near a black hole, and the debris can induce a flux of high-energy neutrinos. It has been discussed that there are hints in IceCube data of high-energy neutrinos produced in Tidal Disruption Events. The emitting region of neutrinos and photons in these astrophysical events is likely to be located in the vicinity of the central black hole, where the dark matter density might be significantly larger than in the outer regions of the galaxy. We explore the potential attenuation of the emitted neutrino and photon fluxes due to interactions with dark matter particles around the supermassive black hole of the host galaxies of AT2019dsg, AT2019fdr and AT2019aalc, and study the implications for some well-motivated models of dark matter-neutrino and dark matter-photon interactions. Furthermore, we discuss the complementarity of our constraints with values of the dark matter-neutrino scattering cross section proven to alleviate some cosmological tensions.

Extended discussion on neutrino emission from TDEs; added references; matches published version in Phys.Lett.B

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Cited by in corpus (7)

• Dark matter coupled to radiation: Limits from the Milky Way satellites
• Constraining neutrino-DM interactions with Milky Way dwarf spheroidals and supernova neutrinos
• Supernova-Neutrino-Boosted Dark Matter from All Galaxies
• Bounds on neutrino-DM interactions from TXS 0506+056 neutrino outburst
• The Dark Matter Diffused Supernova Neutrino Background
• Searching for MeV-mass neutrinophilic Dark Matter with Large Scale Dark Matter Detectors
• Plausible Indication of Gamma-Ray Absorption by Dark Matter in NGC 1068