The Effect of Multiple Cooling Channels on the Formation of Dark Compact Objects

TL;DR

This paper explores how multiple cooling channels in a dissipative dark sector influence the formation, distribution, and properties of dark compact objects, providing insights to distinguish different dark matter models.

Contribution

It introduces a model considering multiple cooling processes in dark matter, showing their impact on the formation and characteristics of dark compact objects, which was not previously analyzed.

Findings

Multiple cooling channels alter the mass distribution of dark compact objects.

The abundance of formed objects depends on the interplay of cooling processes.

Results can help constrain dark sector properties through astrophysical observations.

Abstract

A dissipative dark sector can result in the formation of compact objects with masses comparable to stars and planets. In this work, we investigate the formation of such compact objects from a subdominant inelastic dark matter model, and study the resulting distributions of these objects. In particular, we consider cooling from dark Bremsstrahlung and a rapid decay process that occurs after inelastic upscattering. Inelastic transitions introduce an additional radiative processes which can impact the formation of compact objects via multiple cooling channels. We find that having multiple cooling processes changes the mass and abundance of compact objects formed, as compared to a scenario with only one cooling channel. The resulting distribution of these astrophysical compact objects and their properties can be used to further constrain and differentiate between dark sectors.