Blazar variability patterns

Astronomy and Astrophysics – Astronomy

Scientific paper

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Scientific paper

We study the expected variability patterns of blazars within a two-zone acceleration model, focusing on flare shapes and spectral lags. The kinetic equations describing particle evolution in the acceleration and radiation zone are semi-analytically solved. We then perturb the solutions by introducing variations in its key parameters and examine the flaring behavior of the system. We apply the above to the X-ray observations of blazar 1ES 1218+304, which exhibited a hard-lag behavior during a flaring episode and discuss possibilities of producing it within the context of our model. Finally, we examine the capabilities of the model for producing high-energy gamma-ray flares.

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