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Nonthermal plasmas around black holes, relevant collective modes, new configurations, and magnetic field amplification

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Abstract

The radiation emission from Shining Black Holes is most frequently observed to have nonthermal features. It is therefore appropriate to consider relevant collective processes in plasmas surrounding black holes that contain high energy particles with nonthermal distributions in momentum space. A fluid description with significant temperature anisotropies is the simplest relevant approach. These anisotropies are shown to have a critical influence on: (a) the existence and characteristics of stationary plasma and field ring configurations, (b) the excitation of “thermo-gravitational modes” driven by temperature anisotropies and gradients that involve gravity and rotation, (c) the generation of magnetic fields over macroscopic scale distances, and (d) the transport of angular momentum.

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  1. Massachusetts Institute of Technology, Cambridge, MA, USA

    B. Coppi

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  1. B. Coppi
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Coppi, B. Nonthermal plasmas around black holes, relevant collective modes, new configurations, and magnetic field amplification. Plasma Phys. Rep. 43, 289–297 (2017). https://doi.org/10.1134/S1063780X17030059

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  • DOI: https://doi.org/10.1134/S1063780X17030059

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