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

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.

Monitoring the Non-thermal Universe Workshop, Cochem, September 2018. Conference Proceedings published in Galaxies

References in corpus (5)

• Fermi Large Area Telescope Third Source Catalog
• The minijets-in-a-jet statistical model and the RMS-flux correlation
• Lognormal variability in BL Lacertae
• Characterizing the gamma-ray long-term variability of PKS 2155-304 with H.E.S.S. and Fermi-LAT
• FACT - Monitoring Blazars at Very High Energies

Cited by in corpus (7)

• Multiwavelength variability and correlation studies of Mrk 421 during historically low X-ray and $\gamma$-ray activity in 2015$-$2016
• Study of long-term flux and photon Index distributions of blazars using RXTE observations
• Broadband study of OQ 334 during its flaring state
• Temporal and spectral study of PKS 0208-512 during the 2019-2020 flare
• Understanding the Broadband Emission Process of 3C 279 through Longterm Spectral Analysis
• Estimating longterm power spectral densities in AGN from simulations
• Constraining $\gamma$-ray dissipation site in gravitationally lensed quasar -- PKS 1830$-$211