Dispersion Relations for Cold Plasmas around Reissner-Nordström Black Holes

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We investigate the general relativistic magnetohydrodynamic (GRMHD) equations for cold plasma around the Reissner-Nordström black hole. Applying 3+1 spacetime split we linearize the perturbed equations for non-magnetized/magnetized plasma in both rotating and non-rotating background. By Fourier analyze we then derive dispersion relations and investigate the existence of waves with positive angular frequency in the vicinity of the black hole horizon. The analysis finds propagation of negative phase and group velocities for rotating magnetized surroundings.
25 pages, 9 figures

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General Relativity and Quantum Cosmology

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http://salesiana.dossiersoluciones.com/handle/123456789/228015

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0904.3377
 http://arxiv.org/abs/0904.3377

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arXiv