Solar Wind Acceleration, Critical Points and Mass Flux, and Coronal Heating due to Supra-thermal Electron Beams

Details Solar Wind Acceleration, Critical Points and Mass Flux, and Coronal Heating due to Supra-thermal Electron Beams Solar Wind Acceleration, Critical Points and Mass Flux, and Coronal Heating due to Supra-thermal Electron Beams

Jan 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002mwoc.conf...13h&link_type=abstract

Multi-Wavelength Observations of Coronal Structure and Dynamics -- Yohkoh 10th Anniversary Meeting. Proceedings of the conferenc

Physics

Scientific paper

We propose that heating and acceleration of the solar wind are controlled by damping of the supra-thermal electron beams resulting from the unipolar induction of the twisting flux tubes. Damping length is found to be a fraction of the solar radius, and inversely proportional to the pressure in accord with Withbroe(1988). We claim that the mass flux of the solar wind is determined by the evaporation up flow in the base of the transition region due to the excess heating of the corona as in flares, both in open fields and closed fields. We claim that to find the solar wind solution it is only necessary to give the conditions on and near the Sun, namely the energy flux of the twisting tube, evaporation mass flux and non-radial area expansion function. This should, in principle, be done without considering the interstellar condition or the passage of the critical point, because of the impossibility of sending information back to the Sun, and rapid change of the magnetic field originating faculae.

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