Particle acceleration and gamma-ray generation in the vicinity of the light cylinder of an axisymmetric rotator

Details Particle acceleration and gamma-ray generation in the vicinity of the light cylinder of an axisymmetric rotator Particle acceleration and gamma-ray generation in the vicinity of the light cylinder of an axisymmetric rotator

Sep 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990pazh...16..844b&link_type=abstract

Pis'ma v Astronomicheskii Zhurnal (ISSN 0320-0108), vol. 16, Sept. 1990, p. 844-853. In Russian. In Russian. In Russian.

Statistics

Computation

5

Computational Astrophysics, Cylindrical Bodies, Gamma Ray Astronomy, Neutron Stars, Particle Acceleration, Stellar Rotation, Compton Effect, Cosmic Plasma, Emission Spectra, Energy Transfer, Relativistic Electron Beams, Stellar Magnetic Fields

Scientific paper

A hydrodynamic approximation is used to consider a flow of plasma ejected by an axisymmetrically rotating magnetized neutron star. It is suggested that a helical break is formed in the area of the light cylinder, at which point the conversion of toroidal magnetic field energy into plasma energy takes place and particles are accelerated to approximately 10 to the 7th sq cm. The plasma characteristics after the break are determined, and the accelerated particles spectrum is calculated. It is suggested that the power transferred to electrons and their energy provides an adequate explanation for the nebula luminosities of the Crab and Vela pulsars. Compton scattering of relativistic electrons is shown to generate gamma-ray emission from these pulsars at approximately 1000 GeV. These electrons are accelerated near the light cylinder by thermal photons emitted from the surface of the neutron star.

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