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A kinetic study of solar wind electrons in the transition region from collision dominated to collisionless flowWe 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.
Document ID
19960021269
Acquisition Source
Jet Propulsion Laboratory
Document Type
Conference Paper
Authors
Lie-Svendsen, O.
(Norwegian Defence Research Establishment Kjeller, Norway)
Leer, E.
(Oslo Univ. Norway)
Date Acquired
August 17, 2013
Publication Date
June 30, 1995
Publication Information
Publication: International Solar Wind 8 Conference
Subject Category
Solar Physics
Accession Number
96N24665
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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