Other
Scientific paper
Nov 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983mnras.205..839f&link_type=abstract
Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 205, Nov. 1983, p. 839-857. Research supported by the D
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4
Cosmic Plasma, Interstellar Space, Stellar Winds, Boundary Layers, Electron Distribution, Elliptic Functions, Friction, Gas Pressure, Ion Distribution
Scientific paper
A theoretical investigation has been made of the transition layer between a stellar wind plasma and the surrounding regime of magnetized interstellar plasma, i.e., the astropause boundary layer. For the description of the 'microscopic' structures, a planar representation of the transition zone geometry is used. Here the plasma is taken to be dominated by instability-induced collective relaxation processes as, for example, modified two-stream instabilities, keeping the effective electron and proton temperatures close to each other. These are caused by strong couplings between the plasma constituents and the equilibrium wave field. This permits a quasi-hydrodynamic description of the plasma flow in a two-fluid approximation. For this case, a system of differential equations describing consistently the dynamical variables of the plasma and the magnetic and electric fields in the transition region is developed. Integrals of this system are discussed and it is shown that it can be reduced to one ordinary differential equation. This equation is solved in terms of elliptic integrals and gives an implicit representation of magnetic and electric fields and the density.
Fahr Hans Jörg
Neutsch Wolfram
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