Theory of High Energy Emission from Pulsars

Astronomy and Astrophysics – Astronomy

Scientific paper

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Scientific paper

In this talk we briefly review various models of high energy emission from pulsars. In particular we point out that the light curves can provide important constraints in the radiation emission regions and the location of the accelerators (gaps). Furthermore, the energy dependent light curves and phase-dependent spectrum cannot be explained in terms of simple two dimensional models, three dimensional models must be used to explain the full detail of the observed data. We will present a three dimensional outer gap model to study the magnetospheric geometry, the light curve and the phase-resolved spectra of the Crab pulsar. Using a synchrotron self-Compton mechanism, the phase-resolved spectra with the energy range from 100 eV to 10 GeV of the Crab pulsar can also be explained. We will also use the observed polarization angle swing of optical photons to determine the viewing angle.

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