Astronomy and Astrophysics – Astronomy
Scientific paper
Aug 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990esasp.311..309b&link_type=abstract
In ESA, Plasma Astrophysics p 309-317 (SEE N91-15046 06-90)
Astronomy and Astrophysics
Astronomy
4
Cyclotron Radiation, Magnetohydrodynamics, Radiation Pressure, Radiative Transfer, Stellar Atmospheres, Gamma Ray Bursts, Planetary Nebulae, Space Plasmas, Stellar Magnetospheres, White Dwarf Stars, X Ray Astronomy
Scientific paper
The plasma envelope of a hot magnetic degenerate with high radiation pressure is investigated. The radiation transfer in the photosphere of an isolated magnetic degenerate star is considered and the radiation pressure force is calculated. The star parameters are determined for the photospheric plasma ejection by the cyclotron radiation pressure to be possible. The mass flux of the matter swept up into the star magnetosphere is estimated and the types of magnetic degenerates with the mass loss driven by the photospheric cyclotron radiation are pointed out. The model of an equatorial plasma disk supported by the high radiation pressure is analyzed. The stationary plasma flow from the star surface to the disk and the radial diffusion of matter to the disk periphery are studied. The disk characteristics are determined for various values of the mass flux. The results were applied to isolated magnetic white dwarfs, evolved planetary nebulae nuclei with strong magnetic field, magnetized x ray bursters and gamma bursters.
Bespalov Peter A.
Serber Alexander V.
Zheleznyakov Vladimir V.
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