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Galaxies 2018, 6(4), 135; https://doi.org/10.3390/galaxies6040135

Flux Distribution of Gamma-Ray Emission in Blazars: The Example of Mrk 501

1
Max-Planck-Institut für Kernphysik, P.O. Box 103980, D 69029 Heidelberg, Germany
2
Universität Würzburg, Institute for Theoretical Physics and Astrophysics Emil-Fischer-Str. 31, 97074 Würzburg, Germany
3
Deutsches Elektronen-Synchrotron (DESY), D-15738 Zeuthen, Germany
*
Authors to whom correspondence should be addressed.
Received: 7 November 2018 / Revised: 3 December 2018 / Accepted: 4 December 2018 / Published: 6 December 2018
(This article belongs to the Special Issue Monitoring the Non-Thermal Universe)
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Abstract

Flux distribution is an important tool to understand the variability processes in active galactic nuclei. We now have available a great deal of observational evidences pointing towards the presence of log-normal components in the high energy light curves, and different models have been proposed to explain these data. Here, we collect some of the recent developments on this topic using the well-known blazar Mrk 501 as example of complex and interesting aspects coming from its flux distribution in different energy ranges and at different timescales. The observational data we refer to are those collected in a complementary manner by Fermi-LAT over multiple years, and by the First G-APD Cherenkov Telescope (FACT) telescope and the H.E.S.S. array in correspondence of the bright flare of June 2014. View Full-Text
Keywords: gamma rays; very high energy; active galactic nuclei; Markarian 501; monitoring; flux distributions gamma rays; very high energy; active galactic nuclei; Markarian 501; monitoring; flux distributions
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Romoli, C.; Chakraborty, N.; Dorner, D.; Taylor, A.M.; Blank, M. Flux Distribution of Gamma-Ray Emission in Blazars: The Example of Mrk 501. Galaxies 2018, 6, 135.

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