What the Rankine-Hugoniot relations tell us about co-rotating interaction regions in the solar wind, and what they don't

Wilkinson, W.P. (2001) What the Rankine-Hugoniot relations tell us about co-rotating interaction regions in the solar wind, and what they don't In: Proceedings of the Les Woolliscroft Memorial Conference/Sheffield Space Plasma Meeting: Multi-Point Measurements versus Theory, 24-26 April 2001, Sheffield, UK.

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Abstract

Co-rotating interaction regions (CIRs) are the result of a fast solar wind streat catching up with a slow stream ahead. The simplest description of a CIR portrays it as a compression region bounded by two fast shock waves. A tangential discontinuity within the CIR separates the shocked fast and slow solar wind streams. In this paper we assume that the Rankine-Hugoniot relations apply across both shocks. These relations are then used to predict the properties of the two shocked plasma states within a set of CIRs observed by the Ulysses spacecraft. The obtained properties are examined for consistency with the simple description of a CIR outlined above and the possible reasons for the observed discrepancies are discussed.

Item Type: Contribution to conference proceedings in the public domain ( Full Paper)
Subjects: F000 Physical Sciences > F500 Astronomy
Faculties: Faculty of Science and Engineering > School of Computing, Engineering and Mathematics > Computational Mathematics
Depositing User: Helen Webb
Date Deposited: 14 Nov 2007
Last Modified: 21 Jun 2012 10:00
URI: http://eprints.brighton.ac.uk/id/eprint/3156

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