Black Holes as Dark Matter Annihilation Boosters
Mattia Fornasa (INFN Padova, IAP), Gianfranco Bertone (IAP)
TL;DR
This paper reviews how the growth of supermassive and intermediate black holes can create dense dark matter regions, potentially enhancing dark matter annihilation signals in their vicinity.
Contribution
It provides a comprehensive analysis of conditions under which black holes can significantly increase local dark matter densities, acting as annihilation boosters.
Findings
Black holes can induce dark matter overdensities under specific growth scenarios.
Overdensities around black holes can significantly boost dark matter annihilation signals.
The review identifies key factors influencing dark matter distribution near black holes.
Abstract
We review the consequences of the growth and evolution of Black Holes on the distribution of stars and Dark Matter (DM) around them. We focus in particular on Supermassive and Intermediate Mass Black Holes, and discuss under what circumstances they can lead to significant overdensities in the surrounding distribution of DM, thus effectively acting as DM annihilation boosters.
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