Patterns of variability in γ-ray blazars |
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Authors: | Luigi Foschini |
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Institution: | INAF/IASF-Bologna, Via Gobetti 101, 40129 Bologna, Italy |
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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 γ-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. |
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Keywords: | Blazars Variability Optical Ultraviolet X-rays |
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