Gamma-rays from SS~433 and its interaction with the W50 nebula

TL;DR

This paper models gamma-ray production in SS 433 and its interaction with the W50 nebula, comparing predictions with observations to constrain the system's physical properties.

Contribution

It provides a theoretical framework for gamma-ray emission from SS 433's jets and their interaction with W50, offering new constraints based on observational data.

Findings

Predicted gamma-ray fluxes are consistent with current TeV observations.

Constraints on jet and nebula physical parameters are derived.

The model improves understanding of jet-medium interactions in microquasars.

Abstract

We investigate the production of gamma-rays in the inner regions of SS 433 and in its interaction between its jets and the W50 nebula. We estimate the VHE emission that can be generated within the jets at distances above 1e+13 cm from the compact object. We also apply a theoretical model of the jet/medium interaction to SS 433/W50. We compare the predicted fluxes to observations of SS 433 at TeV energies, and derive new constraints of the physical properties of this system.