A two-component model for the high-energy variability of blazars. Application to PKS 2155-304
Abstract
We study the production of VHE emission in blazars as a superposition of a steady component from a baryonic jet and a time- dependent contribution from an inner e-e+ beam launched by the black hole. Both primary relativistic electrons and protons are injected in the jet, and the particle distributions along it are found by solving a one-dimensional transport equation that accounts for convection and cooling. The short-timescale variability of the emission is explained by local pair injections in turbulent regions of the inner beam. For illustration, we apply the model to the case of PKS 2155-304, reproducing a quiescent state of emission with inverse Compton and synchrotron radiation from primary electrons, as well as proton-proton interactions in the jet. The latter also yield an accompanying neutrino flux that could be observed with a new generation km-scale detector in the northern hemisphere such as KM3NeT.
Keywords
Cite
@article{arxiv.1208.5284,
title = {A two-component model for the high-energy variability of blazars. Application to PKS 2155-304},
author = {Matías M. Reynoso and Gustavo E. Romero and María C. Medina},
journal= {arXiv preprint arXiv:1208.5284},
year = {2015}
}
Comments
9 pages, 12 figures, published in A&A (final version)