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arXiv · 2102.11590

Compton driven beam formation and magnetisation via plasma microinstabilities

Bertrand Martinez·Thomas Grismayer·Luís O. Silva
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Abstract

Compton scattering of gamma rays propagating in a pair plasma can drive the formation of a relativistic electron positron beam. This process is scrutinised theoretically and numerically via particle-in-cell simulations. In addition, we determine in which conditions the beam can prompt a beam-plasma instability and convert its kinetic energy into magnetic energy. We argue that such conditions can be met at the photosphere radius of bright Gamma Ray Bursts.

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Bertrand Martinez, Thomas Grismayer, Luís O. Silva. 2021-02-23. Compton driven beam formation and magnetisation via plasma microinstabilities. https://doi.org/10.1017/s0022377821000660

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