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

Journal of astrophysics and astronomy

M. M. Reynoso¹  G. E. Romero1² 

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

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

DOI  :  

学科分类：天文学(综合)

来源: Indian Academy of Sciences

【 摘 要 】

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.

【 授权许可】

Unknown