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

ROMERO, G. E.; REYNOSO, M. M

JOURNAL OF ASTROPHYSICS AND ASTRONOMY

INDIAN ACAD SCIENCES

Lugar: Bangalore ; Año: 2014 vol. 35 p. 363 - 367

0250-6335

We present a family of models for rapid gamma-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.