A two-fluid solar wind model with anisotropic proton temperature |
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| Authors: | E Leer W I Axford |
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| Institution: | (1) Dept. of Applied Physics and Information Science, University of Calif., 92037 San Diego, La Jolla, Calif., U.S.A.;(2) Dept. of Physics, Dept. of Applied Physics and Information Science, University of Calif., 92037 San Diego, La Jolla, Calif., U.S.A. |
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| Abstract: | A two-fluid model of the solar wind with anisotropic proton temperature and allowing for extended coronal proton-heating is considered for the case of a purely radial and of a spiral magnetic field. Proton-proton Coulomb-collisions together with a spiral interplanetary magnetic field are found to be sufficient to reduce the thermal anisotropy in the proton gas to a value in agreement with observations. Reasonable values are obtained for the flow-velocity, number density and the protontemperature near the orbit of the Earth.This work was supported by the Norwegian Research Council for Science and the Humanities (E. Leer) and the National Aeronautics and Space Administration under Contract No. NGR-05-009-081. |
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