Flux Distribution of Gamma-Ray Emission in Blazars: The Example of Mrk 501
by
Carlo Romoli 1,*, Nachiketa Chakraborty 1,*, Daniela Dorner 2,*
, Andrew M. Taylor 3,* and Michael Blank 2,*
Carlo Romoli 1,*, Nachiketa Chakraborty 1,*, Daniela Dorner 2,*, Andrew M. Taylor 3,* and Michael Blank 2,*
1
Max-Planck-Institut für Kernphysik, P.O. Box 103980, D 69029 Heidelberg, Germany
2
Institute for Theoretical Physics and Astrophysics, Universität Würzburg, Emil-Fischer-Str. 31, 97074 Würzburg, Germany
3
Deutsches Elektronen-Synchrotron (DESY), D-15738 Zeuthen, Germany
*
Authors to whom correspondence should be addressed.
Galaxies 2018, 6(4), 135; https://doi.org/10.3390/galaxies6040135
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)
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.
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Keywords:
gamma rays; very high energy; active galactic nuclei; Markarian 501; monitoring; flux distributions
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MDPI and ACS Style
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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