Neutrino production in the central dark-matter spikes of active galaxies

TL;DR

This paper investigates how dark matter spikes near active galactic nuclei could produce high-energy neutrinos through annihilation and particle interactions, offering a potential explanation for observed neutrino signals.

Contribution

It introduces a model linking dark matter annihilation in galactic centers to neutrino production, and proposes methods for testing this scenario with future observations.

Findings

Dark matter annihilation can produce detectable neutrino fluxes.

Proton-photon interactions in dark matter spikes contribute to neutrino spectra.

Potential observational signatures for future neutrino telescopes.

Abstract

Recent multi-messenger observations suggest that high-energy neutrinos may be produced close to central black holes in active galaxies. These regions may host dark-matter (DM) spikes, where the concentration of DM particles is very high. Here we explore the contribution of the DM annihilation to the target photons for the neutrino production, proton-photon interactions, estimate the associated neutrino spectrum and figure out possible future tests of this scenario.