Smoothing of MHD Shocks in Mode Conversion

Jamon D. Pennicott, Paul S. Cally

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3 Citations (Scopus)

Abstract

Shock waves are simulated passing through the Alfvén-acoustic equipartition layer in a stratified isothermal magneto-atmosphere. The recent ray-theoretic calculations of Núñez predicted smoothing of the shock through this layer, causing both the fast and slow components to emerge as continuous waves. However, it is found that the partial mode conversion expected from linear theory for oblique incidence of the shock on the magnetic field is accompanied by a smoothing of the slow shock only, while the fast shock persists. Explanations are presented based on magnetohydrodynamic mode conversion and shock theory.

Original languageEnglish
Article numberL21
Pages (from-to)1-6
Number of pages6
JournalThe Astrophysical Journal Letters
Volume881
Issue number1
DOIs
Publication statusPublished - 10 Aug 2019

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