The nonlinear transfer problem in accreting pulsars - Stimulated scattering effects

Journal Article · Sat Jul 01 00:00:00 EDT 1989 · Astrophysical Journal; (USA)

DOI:https://doi.org/10.1086/167648· OSTI ID:5595665

Alexander, S G; Meszaros, P; Bussard, R W ^[1]

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1. Pennsylvania State Univ., University Park (USA)

The accreting pulsar radiative transfer problem in the presence of nonlinear effects in the radiation field, in particular those introduced by stimulated scattering, is solved. This leads to an extension of the Feautrier method in the strong magnetic case, which is solved by iterations. Relativistic cross sections are introduced and their effect is compared to the nonrelativistic approximation. This affects the cyclotron line shape and energy. It is found that stimulated scattering is important in determining the flux level in the continuum above the effective thermalization frequency and also in determining the cyclotron line flux. 23 refs.

• OSTI ID: 5595665
• Journal Information: Astrophysical Journal; (USA), Vol. 342; ISSN 0004-637X
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
PULSARS
STAR ACCRETION
RADIATION TRANSPORT
ASTROPHYSICS
COMPARATIVE EVALUATIONS
COSMIC X-RAY SOURCES
CYCLOTRON RADIATION
ITERATIVE METHODS
RELATIVISTIC RANGE
SCATTERING
BREMSSTRAHLUNG
COSMIC RADIO SOURCES
COSMIC RAY SOURCES
ELECTROMAGNETIC RADIATION
ENERGY RANGE
RADIATIONS
STAR EVOLUTION
640102* - Astrophysics & Cosmology- Stars & Quasi-Stellar
Radio & X-Ray Sources