Accession Number : AD0693575

Title :   REFLECTION, REFRACTION AND COUPLING OF MHD WAVES AT A DENSITY STEP,

Corporate Author : HARVARD COLL OBSERVATORY CAMBRIDGE MASS

Personal Author(s) : Stein,Robert F.

Report Date : APR 1969

Pagination or Media Count : 114

Abstract : The transmission and reflection coefficients for MHD waves incident on a density step are calculated. All three modes (fast, slow and Alfven) are coupled together except when the magnetic field is in the plane of incidence or the plane of the interface. Results for arbitrary orientations of interface normal, magnetic field and incident wave vector are shown in a series of graphs. Strong coupling between modes occurs for incident wave vectors nearly parallel the magnetic field. (Author)

Descriptors :   (*SOLAR ATMOSPHERE, *MAGNETOHYDRODYNAMICS), SNELLS LAW, MAGNETIC FIELDS, BOUNDARY VALUE PROBLEMS, WAVE PROPAGATION, REFLECTION, REFRACTION, DENSITY

Subject Categories : Astrophysics
      Plasma Physics and Magnetohydrodynamics

Distribution Statement : APPROVED FOR PUBLIC RELEASE