Decoupled Sectors and Wolf-Rayet Galaxies

TL;DR

This paper explores how the presence of charged dark matter in star-forming regions of Wolf-Rayet galaxies could influence gamma-ray burst events, proposing a method to probe dark matter properties through GRB observations.

Contribution

It introduces a model linking dark matter properties to observable gamma-ray burst features in specific galaxies, enabling direct probing of dark matter particle parameters.

Findings

Dark matter and visible matter gas are comparable in star-forming regions.

The ratio of dark to visible jet power depends on particle mass and charge ratios.

Future GRB observations can constrain dark matter particle properties.

Abstract

It has recently been proposed that gamma-ray burst (GRB) events may be modified by the presence of a dark matter sector subcomponent that is charged under an unbroken U(1). This proposal depends upon there being a non-trivial density of charged dark matter in star forming regions of galaxies which host GRBs. We discuss four Wolf-Rayet galaxies (NGC 1614, NGC 3367, NGC 4216 and NGC 5430) which should contain comparable amounts of dark matter gas and visible matter gas in the star forming regions. We show that the ratio of dark jet power to visible jet power depends only on the ratio of particle mass and charge when the densities are equal, allowing for these input parameters to be probed directly by future observations of GRBs.