Astronomy and Astrophysics – Astrophysics
Scientific paper
May 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993ppcn.conf..329t&link_type=abstract
In ESA, Fourth International Toki Conference on Plasma Physics and Controlled Nuclear Fusion p 329-332 (SEE N94-22624 05-75)
Astronomy and Astrophysics
Astrophysics
1
Accretion Disks, Cosmic Plasma, Magnetic Field Configurations, Magnetohydrodynamic Flow, Stellar Winds, Astrophysics, Magnetohydrodynamic Waves, Magnetohydrodynamics, Poloidal Flux, Relativistic Plasmas
Scientific paper
Cold relativistic ideal magnetohydrodynamic (MHD) flows are studied in the stationary and axisymmetric magnetosphere of a rapidly rotating compact object. To obtain highly accelerated winds, MHD winds emanating from a geometrically thin disk and passing through smoothly both the Alfven and fast magnetosonic points for specified configuration of streamlines are examined. It is found that for a streamline converging toward the rotation axis the fast magnetosonic point always exists at a finite distance. For a straight configuration of streamlines the fast magnetosonic point can exist close to the Alfven point only if energy flux of a wind is sufficiently large. For a convex configuration a super fast wind solution is also possible. The solution stops at a finite distance and no solution reaches infinity.
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