| Issue |
EPJ Web Conf.
Volume 364, 2026
XXXI International Conference on Ultra-Relativistic Nucleus-Nucleus Collisions “Quark Matter 2025”
|
|
|---|---|---|
| Article Number | 14002 | |
| Number of page(s) | 4 | |
| Section | QCD Matter in Astrophysics | |
| DOI | https://doi.org/10.1051/epjconf/202636414002 | |
| Published online | 17 April 2026 | |
https://doi.org/10.1051/epjconf/202636414002
Relativistic dissipative magnetohydrodynamics for ion-electron plasma
Instituto de Física, Universidade Federal Fluminense (UFF), Niterói, 24210-346, RJ, Brazil
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Published online: 17 April 2026
Abstract
We derive a relativistic magnetohydrodynamics (RMHD) theory for a dilute electron-ion gas governed by the Boltzmann-Vlasov equation, using the method of moments. This yields an extended MHD framework beyond standard astrophysical formulations, which typically include only the shear-stress component parallel to the magnetic field. We analyze our framework in the linear regime and show that it leads to the firehose instability when the background longitudinal pressure becomes large. In these extreme scenario, the transverse and semi-transverse shear-stress components become large and may play a role in accretion disk dynamics.
© The Authors, published by EDP Sciences, 2026
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