A pair plasma model for PKS 0208-512
I. V. Moskalenko, W. Collmar (MPE, Garching)
TL;DR
This paper proposes a pair plasma model to explain the MeV emission in the blazar PKS 0208-512, estimating key parameters of the annihilation region and predicting an anticorrelation between high-energy emission and annihilation flux.
Contribution
It introduces a novel pair plasma annihilation model for blazar emission, linking annihilation features with AGN jet mechanisms.
Findings
Estimated size and density of the annihilation region
Predicted anticorrelation between high-energy emission and annihilation flux
Model aligns with current AGN emission theories
Abstract
Assuming that the enhanced MeV emission from the MeV blazar PKS 0208-512 observed by COMPTEL on occasions is due to annihilation in a pair plasma, we estimate parameters of the annihilation region: its size, the number density of particles, and the variability timescale. The values we find are in accord with our present-day knowledge of emission mechanisms operating in AGNs. The constructed model implies that the blueshifted annihilation emission is an intrinsic property of all AGN jet models, and predicts an anticorrelation between the high-energy emission and the annihilation flux.
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Taxonomy
TopicsAstrophysics and Cosmic Phenomena · Computational Physics and Python Applications · Particle physics theoretical and experimental studies