Collisionless electron heat conduction in the solar wind

Details Collisionless electron heat conduction in the solar wind Collisionless electron heat conduction in the solar wind

Apr 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976jgr....81.1649h&link_type=abstract

Journal of Geophysical Research, vol. 81, Apr. 1, 1976, p. 1649-1658.

Statistics

Computation

32

Collisionless Plasmas, Conductive Heat Transfer, Magnetohydrodynamic Stability, Solar Electrons, Solar Wind, Electron Energy, Mathematical Models, Mean Free Path, Solar Wind Velocity

Scientific paper

A simple model is used to explore the nature of the collisionless electron heat conduction flux in the solar wind and to study plasma instabilities driven by the heat-conduction flux. Computations show that the electron temperature is elevated in the collision-dominated region close to the sun and that electron temperature falls off more rapidly in the region where the collisionless heat flux applies. The electron temperature and heat conduction flux at 1 AU are lower in the present computations than in models which use only the Sitzer-Harm flux and the elevated electron temperature near the sun results in higher solar wind flow velocities at 1 AU.

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