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Electrostatic solitary waves in a quantum plasma with relativistically degenerate electrons
Umeå University, Faculty of Science and Technology, Department of Physics.
2011 (English)In: Physics of Plasmas, ISSN 1070-664X, E-ISSN 1089-7674, Vol. 18, no 3, 034503Article in journal (Refereed) Published
Abstract [en]

A model for nonlinear ion waves in an unmagnetized plasma with relativistically degenerate electrons and cold fluid ions is presented here. The inertia is given here by the ion mass while the restoring force is provided by the relativistic electron degeneracy pressure, and the dispersion is due to the deviation from charge neutrality. A nonlinear Korteweg-de Vries equation is derived for small but finite amplitude waves and is used to study the properties of localized ion acoustic solitons for parameters relevant for dense astrophysical objects such as white dwarf stars. Different degrees of relativistic electron degeneracy are discussed and compared.

Place, publisher, year, edition, pages
2011. Vol. 18, no 3, 034503
National Category
Fusion, Plasma and Space Physics
URN: urn:nbn:se:umu:diva-104479DOI: 10.1063/1.3556122ISI: 000289151900090OAI: diva2:821941
Available from: 2015-06-16 Created: 2015-06-11 Last updated: 2015-06-16Bibliographically approved

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Eliasson, Bengt
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