Propagation of three-dimensional Alfvén waves in a stratified, thermally conducting solar wind

Details Propagation of three-dimensional Alfvén waves in a stratified, thermally conducting solar wind Propagation of three-dimensional Alfvén waves in a stratified, thermally conducting solar wind

Nov 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996jgr...10124443o&link_type=abstract

Journal of Geophysical Research, Volume 101, Issue A11, p. 24443-24456

Physics

Plasma Physics

20

Interplanetary Physics: Interplanetary Magnetic Fields, Interplanetary Physics: Plasma Waves And Turbulence, Interplanetary Physics: Solar Wind Plasma, Space Plasma Physics: Kinetic And Mhd Theory

Scientific paper

We model the propagation of three-dimensional, adiabatic, linear Alfvén waves in the solar atmosphere and wind, taking into account relevant physical effects, including gravity stratification, thermal conduction, radiative losses, and heating (via a phenomenological term). Our magnetohydrodynamic solar wind model also accounts for the momentum deposition by a spectrum of non-WKB Alfvén waves. The transmission and reflection of such waves has been previously studied by a variety of techniques, including calculations based on the computation of the ratio between the wavelength and the scale length of the Alfvén speed change and based on a globally-computed transmission coefficient. In this paper we discuss both techniques and show how they are related. We also discuss the physics underlying the reflection process and the possible role wave reflection might play in the acceleration of the solar wind and the winds from other stars.

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