A kinetic study of solar wind electrons in the transition region from collision dominated to collisionless flow

Details A kinetic study of solar wind electrons in the transition region from collision dominated to collisionless flow A kinetic study of solar wind electrons in the transition region from collision dominated to collisionless flow

Jun 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995sowi.conf...30l&link_type=abstract

Norwegian Defence Research Establishment, International Solar Wind 8 Conference, p. 30

Physics

Solar Corona, Velocity Distribution, Solar Wind, Solar Electrons, Kinetics, Collisional Plasmas, Collisionless Plasmas, Plasma Acceleration, Solar Wind Velocity, Solar Physics, Mathematical Models, Fokker-Planck Equation, Coulomb Collisions, Finite Difference Theory, Distribution Functions

Scientific paper

We have studied the evolution of the velocity distribution function of a test population of electrons in the solar corona and inner solar wind region, using a recently developed kinetic model. The model solves the time dependent, linear transport equation, with a Fokker-Planck collision operator to describe Coulomb collisions between the 'test population' and a thermal background of charged particles, using a finite differencing scheme. The model provides information on how non-Maxwellian features develop in the distribution function in the transition region from collision dominated to collisionless flow. By taking moments of the distribution the evolution of higher order moments, such as the heat flow, can be studied.

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