The plasma mechanism of IR emission of X-ray pulsars

Details The plasma mechanism of IR emission of X-ray pulsars The plasma mechanism of IR emission of X-ray pulsars

Jan 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987pazh...13...32m&link_type=abstract

Pis'ma v Astronomicheskii Zhurnal (ISSN 0320-0108), vol. 13, Jan. 1987, p. 32-38. In Russian. In Russian.

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Emission Spectra, Infrared Spectra, Plasma Physics, Pulsars, Stellar Mass Accretion, X Ray Stars, Computational Astrophysics, Ion Cyclotron Radiation, Plasma Density, Plasma Dynamics, Stellar Magnetic Fields

Scientific paper

The plasma mechanism of infrared emission generation nearby a compact object (neutron star) in the accretion flow of a double system is considered. The conservation of adiabatic invariant of plasma particles moving towards the increasing magnetic field (falling into the cusp) leads to distribution function anisotropy provoking an ion-cyclotron instability. Quasi-linear diffusion causes the penetration of particles into the cusp. The most high frequency waves ω > 1014Hz damp weakly due to the electron-cyclotron resonance in the course of their spreading towards the upper regions of the neutron star's magnetosphere. Because of the rather fast decreasing of particle density in the upper regions the plasma turns out to be transparent for infrared waves (λ < n-1/3), and they can reach the observer.

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