Astronomy and Astrophysics – Astrophysics
Scientific paper
Aug 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990esasp.311..163g&link_type=abstract
In ESA, Plasma Astrophysics p 163-168 (SEE N91-15046 06-90)
Astronomy and Astrophysics
Astrophysics
1
Collisionless Plasmas, Electric Fields, Electromagnetic Fields, Magnetic Fields, Magnetic Induction, Oblique Shock Waves, Plasma Currents, Magnetic Moments, Mathematical Models, Reynolds Number, Rotation, Velocity Distribution
Scientific paper
The problem of the inductive magnetic field generation by an oblique magnetic rotator with the moment distributed on a given scale, rotating with a given frequency in the plasma with a given plasma frequency and a given thermal velocity is solved. The vector potential field is investigated and its asymptotic behavior in the limiting cases are found. The equations of the magnetic field lines in the equatorial plane of the rotator and their picture are obtained. The power dissipated by the rotator into the plasma and the breaking moment of the forces acting on the dipole are calculated. The expressions for the loss resistance and for the inductive characteristics of the dipole in plasma are obtained. The behavior of the characteristics is investigated depending on the introduced anomalous collisionless magnetic Reynolds number which characterizes the role of the effects of magnetic viscosity and conductivity in a collisionless plasma. The structure of the average velocity field of the plasma particle and of the current system excited is investigated.
Gubchenko V. M.
Khodachenko Maxim L.
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