Modulation of AGN gamma-rays by interaction with X-rays from an accretion disc hotspot
Open Access
- 1 September 1997
- journal article
- Published by Oxford University Press (OUP) in Monthly Notices of the Royal Astronomical Society
- Vol. 290 (1) , 139-144
- https://doi.org/10.1093/mnras/290.1.139
Abstract
We have developed a model for the variability of gamma-ray emission in jets of active galactic nuclei (AGN) in which the variability arises as a result of photon-photon pair production interactions with X-rays emitted by a hotspot in the inner part of the accretion disc. As the hotspot orbits around the central engine, the amount of absorption varies. Our model may account for the observed variability of TeV emission from Markarian 421, as well as correlated variations of the X-ray and TeV gamma-ray flux.Keywords
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