Gamma-ray flux variability in the sample of EGRET blazars

Details Gamma-ray flux variability in the sample of EGRET blazars Gamma-ray flux variability in the sample of EGRET blazars

1997-07-17

arxiv.org/abs/astro-ph/9707205v1

Astronomy and Astrophysics

Astrophysics

6 pages, 5 figures, TeX, using lecproc.cmm and epsf.sty, to appear in Proceedings of "Relativistic jets in AGNs", May 27-30, C

Scientific paper

We analyze average gamma-ray variability statistics for the sample of blazars detected by CGRO/EGRET. We re-reduce all the available EGRET observations and analyze light curves by Monte Carlo modeling of the variability statistics including observational artifacts. We show that the observed variability behavior is dominated by the distribution of measurement errors which leads to strong systematical effects in all of the these statistics. General variability behavior detected by us is consistent with non-linear models and shows marginal correlation at long time scales in the structure function. We determine limits on distributions of the variability parameters with synthesis of flare population. We conclude that this method shows that all blazar light curves are consistent with a superposition of multiple flares.

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