• Models for Very Rapid High-Energy 𝛾-Ray Variability in Blazars

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      https://www.ias.ac.in/article/fulltext/joaa/035/03/0363-0367

    • Keywords

       

      Blazars; 𝛾-rays: theory; jets; MHD-instabilities.

    • 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.

    • Author Affiliations

       

      G. E. Romero1 M. M. Reynoso2

      1. Instituto Argentino de Radioastronomía, (CCT La Plata - CONICET), C.C. N°5 (1894), Villa Elisa, Buenos Aires, Argentina.
      2. Instituto de Investigaciones Físicas (CONICET-UNMdP), Funes 3350, (7600) Mar del Plata, Buenos Aires, Argentina.
    • Dates

       
  • Journal of Astrophysics and Astronomy | News

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