Ion heating in oblique low-Mach number shocks

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Abstract

The contribution of the directly transmitted ions to ion heating in the low-Mach number oblique shock is determined analytically. We derive approximate expressions for the pressure tensor inside the ramp of a Jow-Mach number low-β shock. In the thin shock limit the ion state equation p ∝ n3 is recovered within the ramp, which corresponds to the complete demagnetization of ions and effective one-dimensional behavior. We derive the estimate for the maximum downstream temperature of the heated ion distribution, which depends only on the magnetic compression ratio and cross-shock potential, and may be verified observationally.

Original languageEnglish
Article number97GL02524
Pages (from-to)2511-2514
Number of pages4
JournalGeophysical Research Letters
Volume24
Issue number20
DOIs
StatePublished - 1 Jan 1997

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