Patterns of variability in gamma-ray blazars
arXiv:0807.2253 · doi:10.1016/j.asr.2008.12.020
Abstract
Preliminary results of a systematic study on the simultaneous optical-to-X-rays variability in blazars are presented. Data from Swift observations of four bright gamma-ray blazars (3C 279, ON+231, S5 0716+71, PKS 2155-304) have been analyzed, compared, and discussed. Specifically, 3C 279 shows a variable flattening in the low energy part of the X-ray spectrum that appears to be confined in a specific X-ray vs optical/UV fluxes region. Some implications are shortly analyzed.
12 pages, 4 figures. Poster presented at 37th COSPAR Assembly (Montreal, Canada, July 13-20, 2008), Session E17. Revised according to the referees comments. Accepted for publication on Advances in Space Research
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