Compton scattering of gamma rays propagating in a pair plasma can drive the formation of a relativistic electron positron beam. This process is scrutinized 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.

中文翻译：

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康普顿驱动的光束形成和通过等离子体微不稳定性的磁化

在一对等离子体中传播的伽马射线的康普顿散射可以驱动相对论电子正电子束的形成。这个过程通过细胞内粒子模拟在理论上和数值上进行了仔细检查。此外，我们确定了光束在哪些条件下会导致光束-等离子体不稳定性并将其动能转化为磁能。我们认为，这样的条件可以在明亮的伽马射线爆发的光球半径处满足。