Astronomy and Astrophysics – Astronomy
Scientific paper
Aug 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989azh....66..737l&link_type=abstract
Astronomicheskii Zhurnal (ISSN 0004-6299), vol. 66, July-Aug. 1989, p. 737-748. In Russian.
Astronomy and Astrophysics
Astronomy
Plasma-Electromagnetic Interaction, Pulsars, Radiation Pressure, Stellar Magnetic Fields, X Ray Sources, Continuous Radiation, Cyclotron Radiation, Inhomogeneity
Scientific paper
The radiation pressure on accreting plasma of X-ray pulsars is discussed. The cyclotron line radiation pressure force is calculated and the dependence of this force on particle momentum is analyzed. It is shown that, for all known X-ray pulsars, the maximum radiation pressure force is three to four orders of magnitude greater than the radiation pressure force in the continuum and at least two orders of magnitude greater than the force of gravity acting on a proton. The average radiation pressure force for sources with luminosities below 10 to the 35th erg/s is determined by cyclotron scattering and may be greater than the force of gravity. For X-ray pulsars brighter than 10 to the 36th erg/s, the influence of cyclotron scattering on the mean force may be neglected.
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