# On the Origin of X-ray Spectra in Luminous Blazars

@article{Sikora2013OnTO,
title={On the Origin of X-ray Spectra in Luminous Blazars},
author={Marek Sikora and Mateusz Janiak and Krzysztof Nalewajko and Greg M. Madejski and Rafal Moderski},
journal={The Astrophysical Journal},
year={2013},
volume={779},
pages={68}
}
• Published 4 November 2013
• Physics
• The Astrophysical Journal
Gamma-ray luminosities of some quasar-associated blazars imply jet powers reaching values comparable to the accretion power even if assuming very strong Doppler boosting and very high efficiency of gamma-ray production. With much lower radiative efficiencies of protons than of electrons, and the recent reports of very strong coupling of electrons with shock-heated protons indicated by particle-in-cell simulations, the leptonic models seem to be strongly favored over the hadronic ones. However…
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