Abstract.
We present a family of models for rapid γ-ray variability in blazars based on a two-component jet. Fast variability occurs when relativistic electron–positron pairs interact with small-scale perturbations in the inner jet. These perturbations are produced by Kelvin–Helmholtz instabilities. We fit the minute-scale strong variability displayed by the blazar PKS 2155−304 and present synthetic light-curves of the kind that might be observed with forthcoming instruments such as the Cherenkov telescope array.
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Acknowledgements
The authors would like to thank M. C. Medina for useful discussions. This research is supported by CONICET (Argentina) through grants PIP 112-200901-00078 and PIP 112-200801-00587.
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Romero, G.E., Reynoso, M.M. Models for Very Rapid High-Energy γ-Ray Variability in Blazars. J Astrophys Astron 35, 363–367 (2014). https://doi.org/10.1007/s12036-014-9231-y
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DOI: https://doi.org/10.1007/s12036-014-9231-y