Massive Black Holes from Dissipative Dark Matter

TL;DR

This paper proposes that a dissipative dark matter component can form intermediate-mass black hole seeds early in the universe, leading to faster growth of supermassive black holes and explaining high-redshift quasars, with observable implications.

Contribution

It introduces a novel scenario where dissipative dark matter contributes to black hole seed formation and accelerated growth, impacting early universe structure formation.

Findings

Dissipative dark matter can form intermediate-mass black hole seeds.

Black holes grow faster with dissipative dark matter than in standard models.

The scenario predicts observable effects on dark substructures and gravitational waves.

Abstract

We show that a subdominant component of dissipative dark matter resembling the Standard Model can form many intermediate-mass black hole seeds during the first structure formation epoch. We also observe that, in the presence of this matter sector, the black holes will grow at a much faster rate with respect to the ordinary case. These facts can explain the observed abundance of supermassive black holes feeding high-redshift quasars. The scenario will have interesting observational consequences for dark substructures and gravitational wave production.