Gamma-ray emission from Wolf-Rayet stars interacting with AGN jets

TL;DR

This paper investigates gamma-ray emission resulting from Wolf-Rayet stars interacting with AGN jets, highlighting potential high-energy radiation detectable in nearby non-blazar sources.

Contribution

It presents a detailed model of gamma-ray production from WR star and AGN jet interactions, emphasizing the significance of this process for high-energy astrophysics.

Findings

Gamma-ray emission can be significant in WR star-AGN jet interactions.

The emission is especially relevant for nearby non-blazar sources.

A bow-shaped double-shock structure forms during the interaction.

Abstract

Dense populations of stars surround the nuclear regions of galaxies. In this work, we study the interaction of a WR star with relativistic jets in active galactic nuclei. A bow-shaped double-shock structure will form as a consequence of the interaction of the jet and the wind of the star. Particles can be accelerated up to relativistic energies in these shocks and emit high-energy radiation. We compute the produced gamma-ray emission obtaining that this radiation may be significant. This emission is expected to be particularly relevant for nearby non-blazar sources.