A spatially resolved SSC Shock-in-Jet model

TL;DR

This paper introduces a comprehensive, spatially resolved SSC jet model that simulates spectral energy distributions and variability by incorporating shock and stochastic acceleration, applicable to complex jet scenarios like those observed in Mrk501.

Contribution

It presents a novel self-consistent SSC model that accounts for spatial variations, multiple acceleration processes, and detailed microphysics to better understand jet emissions.

Findings

Successfully reproduces observed SEDs with cooling effects

Explains high variability through multiple shocks

Fits multi-frequency data of Mrk501 from 2010

Abstract

In this paper a spatially resolved, fully self-consistent SSC model is presented. The observable spectral energy distribution (SED) evolves entirely from a low energetic delta distribution of injected electrons by means of the implemented microphysics of the jet. These are in particular the properties of the shock and the ambient plasma, which can be varied along the jet axis. Hence a large variety of scenarios can be computed, e.g. the acceleration of particles via multiple shocks. Two acceleration processes, shock acceleration and stochastic acceleration, are taken into account. From the resulting electron distribution the SED is calculated taking into account synchrotron radiation, inverse Compton scattering (full cross section) and synchrotron self absorption. The model can explain SEDs where cooling processes are crucial. It can verify high variability results from acausal simulations and produce variability not only via injection of particles, but due to the presence of multiple shocks. Furthermore a fit of the data, obtained in the 2010 multi-frequency campaign of Mrk501, is presented.