Modeling of relativistic ion-acoustic waves in ultra-degenerate plasmas

Fernando Haas

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arXiv · 1712.05446

Modeling of relativistic ion-acoustic waves in ultra-degenerate plasmas

Fernando Haas

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Abstract

We consider the relativistic ion-acoustic mode in a plasma composed by cold ions and an ultra-degenerate electron gas, described the relativistic Vlasov-Poisson system. A critical examination of popular fluid models for relativistic ion-acoustic waves is provided, comparing kinetic and hydrodynamic results. The kinetic linear dispersion relation is shown to be reproduced by the rigorous relativistic hydrodynamic equations with Chandrasekhar's equation of state.

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Fernando Haas. 2017-12-14. Modeling of relativistic ion-acoustic waves in ultra-degenerate plasmas. https://arxiv.org/abs/1712.05446

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