A model for jets of low-mass microquasars

TL;DR

This paper introduces a comprehensive jet model for low-mass microquasars, accounting for various particle contributions and energy processes to predict their broadband emission, exemplified by the case of XTE J1118+480.

Contribution

It presents a detailed, inhomogeneous jet model including secondary particles and absorption effects, advancing the understanding of low-mass microquasar emissions.

Findings

Predicted high-energy radiation for XTE J1118+480.

Quantified particle energy losses and secondary particle production.

Analyzed photon-photon absorption effects.

Abstract

In this work we present a new jet model for the non-thermal broadband emission of low-mass microquasars. We calculate the contribution of relativistic particles, primary electrons and protons as well as secondary muons, charged pions and electron-positron pairs, to the electromagnetic spectrum of the sources. The distribution in energy of all particle species is obtained for an extended, inhomogeneous region. We include detailed analysis of particle energy losses, injection, decay and escape from the acceleration zone. We also calculate absorption effects due to photon-photon annihilation. As an application, we consider the case of XTE J1118+480, a well-known low-mass X-ray binary in the galactic halo, and we present predictions about its high-energy radiation