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

Part of: PLA The Vlasov Equation

Published online by Cambridge University Press:  23 November 2016

Fernando Haas Open the ORCID record for Fernando Haas [Opens in a new window]
Fernando Haas*
Affiliation:
Physics Institute, Federal University of Rio Grande do Sul, Av. Bento Gonçalves 9500, Porto Alegre, RS, Brasil
*
†Email address for correspondence: fernando.haas@ufrgs.br
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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.

Keywords

plasma wavesquantum plasma
Type
Research Article
Information
Journal of Plasma Physics , Volume 82 , Issue 6 , December 2016 , 705820602
Copyright
© Cambridge University Press 2016 

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