Two-Fluid Theory of Interplanetary Shock Waves

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Abstract

A 2-fluid time-dependent analytical model of the perturbed solar wind is presented. The expansion of newly emitted material, caused, for instance, by the outburst of a solar flare, is simulated by a spherical piston. For a given thermal conductivity in the limit of strong coupling, one fluid flow in a thermally conducting medium is recovered. A pattern of flow which resembles one-fluid flow in adiabatic medium may be recovered if heat is removed from the perturbed plasma into the propelling plasma. The perturbed flow consists of a thermal precursor which is followed by a shock across which electrons are isothermal while protons are compressed and heated. Finally, we show that the post-shock rise and fall of density cannot be used to distinguish piston-driven waves from blast waves.
Original languageEnglish
Title of host publicationSolar and Interplanetary Dynamics
EditorsM. Dryer, E. Tandberg-Hanssen
Place of PublicationDordrecht
PublisherSpringer Netherlands
Pages327-331
Number of pages5
ISBN (Electronic)978-94-009-9100-2
ISBN (Print)978-90-277-1162-5, 978-90-277-1163-2
DOIs
StatePublished - 1980

Publication series

NameInternational Astronomical Union Symposia
PublisherSpringer
Volume91
ISSN (Print)1743-9213
ISSN (Electronic)2352-2186

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