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arXiv · 2101.06014

Turbulence and Particle Acceleration in Shearing Flows

Frank M. Rieger·Peter Duffy
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Abstract

We explore constraints imposed by shear-driven instabilities on the acceleration of energetic particles in relativistic shearing flows. We show that shearing layers in large-scale AGN jets are likely to encompass a sizeable fraction ($\geq 0.1$) of the jet radius, requiring seed injection of GeV electrons for efficient acceleration. While the diffusion process may depend on pre-developed turbulence if injection occurs at higher energies, electron acceleration to PeV and proton acceleration to EeV energies appears possible within the constraints imposed by jet stability.

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Frank M. Rieger, Peter Duffy. 2021-01-15. Turbulence and Particle Acceleration in Shearing Flows. https://doi.org/10.3847/2041-8213%2Fabd567

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