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Detailed Reference Information |
Ofman, L. (2004). Three-fluid model of the heating and acceleration of the fast solar wind. Journal of Geophysical Research 109: doi: 10.1029/2003JA010221. issn: 0148-0227. |
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A new three-fluid, two-dimensional, wave-driven model that includes, for the first time, heat conduction, viscous, and resistive dissipation for protons and electrons in two-dimensional coronal hole is presented. The fast solar wind model includes electron, proton, and He++ or O5+ ion fluids. The heating of the solar wind plasma due to MHD waves is modeled as follows: A broadband spectrum of low-frequency Alfv¿n waves is launched from the base of the corona. The waves deposit momentum and heat into the plasma to produce the fast solar wind. The values of the resistivity and shear viscosity coefficients required to produce the hot and fast solar wind consistent with observations are orders of magnitude larger than classical values. An empirical heating term that represents the contribution of additional heating processes, such as resonant heating by ion cyclotron waves, is included for the heavy ions and for protons in three out of four cases in the present study. |
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Abstract |
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Keywords
Solar Physics, Astrophysics, and Astronomy, Coronal holes, Solar Physics, Astrophysics, and Astronomy, Magnetic fields, Space Plasma Physics, Charged particle motion and acceleration, Space Plasma Physics, Kinetic and MHD theory, Space Plasma Physics, Numerical simulation studies, Alfvén waves, coronal holes, acceleration and heating, three-fluid model |
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Publisher
American Geophysical Union 2000 Florida Avenue N.W. Washington, D.C. 20009-1277 USA 1-202-462-6900 1-202-328-0566 service@agu.org |
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