Gamma-ray pulsars: Implications for the radiation mechanism

Details Gamma-ray pulsars: Implications for the radiation mechanism Gamma-ray pulsars: Implications for the radiation mechanism

Jul 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977esasp.124...75m&link_type=abstract

In ESA Recent Advan. in Gamma-Ray Astronomy p 75-79 (SEE N78-11899 02-88)

Astronomy and Astrophysics

Astronomy

2

Gamma Rays, Pulsars, Radiation Sources, Curvature, Emission, Light Curve, Models, Pair Production, Photons

Scientific paper

A model for the gamma ray emission from pulsars, especially designed to reproduce the light curve of PSR 0833-45, is proposed. In accordance with the model of Ruderman and Sutherland, the radiating particles are injected along the open field lines with a given energy, due to gap acceleration, and emit curvature radiation. The equation describing the energy losses is integrated exactly in the limit omega = O, and is then corrected up to the first order for rotation effects. The transfer equation for the curvature photons takes into account the aberration, the Doppler shift, and the pair production absorption. Computed pulse profiles and averaged spectra are reported, showing that gamma rays are generated in the intermost regions of the magnetosphere and that an observable flux of primary photons can outlive the interaction with the magnetic field.

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