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Time dependent hadronic modeling of flat spectrum radio quasars

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Diltz, C.
Böttcher, M.
Fossati, G.

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American Astronomical Society

Abstract

We introduce a new time-dependent lepto-hadronic model for blazar emission that takes into account the radiation emitted by secondary particles, such as pions and muons, from photo hadronic interactions. Starting from a baseline parameter set guided by a fit to the spectral energy distribution of the blazar 3C 279, we perform a parameter study to investigate the effects of perturbations of the input parameters to mimic different flaring events to study the resulting light curves in the optical, X-ray, high-energy (HE: E > 100 MeV), and very-high-energy (E > 100 GeV) γ-rays as well as the neutrino emission associated with charged-pion and muon decay. We find that flaring events from an increase in the efficiency of Fermi II acceleration will produce a positive correlation between all bandpasses and a marked plateau in the HE γ-ray lightcurve. We also predict a distinctive dip in the HE lightcurve for perturbations caused by a change in the proton injection spectral index. These plateaus/dips could be a tell tale signature of hadronic models for perturbations that lead to more efficient acceleration of highenergy protons in parameter regimes where pion and muon synchrotron emission is non-negligible

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Diltz, C. et al. 2015. Time dependent hadronic modeling of flat spectrum radio quasars. Astrophysical journal, 802(2): Article no 133. [https://doi.org/10.1088/0004-637X/802/2/133]

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