Gamma-radiation generated by inverse Compton scattering from polar regions of radio-pulsars with asymmetric magnetic field

A.I. Tsygan, E.M. Kantor, D.P. Barsukov
Ioffe Physico-Technical Institute, St.Petersburg, Russia

The influence of magnetic field nondipolarity on gamma radiation of radio pulsar polar caps is considered. Goldreich-Julian model for the regime of free-electron emission from the neutron star surface is used. When calculating gamma radiation flux it is taking into account both curvature radiation of primary electrons and radiation produced by nonresonant inverse compton scattering the thermal photons from polar cap on primary electrons. The influences of both curvature of non-dipolar magnetic field lines and the distortion of accelerating electric field caused by the magnetic field nondipolarity on gamma radiation are taking into account.


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