Astronomy and Astrophysics – Astrophysics
Scientific paper
1998-02-03
Astronomy and Astrophysics
Astrophysics
8 pages, 2 embedded figures, invited talk presented at the Workshop on Neutron Stars and Pulsars, Tokyo, Japan, November 1997
Scientific paper
The study of physical processes associated with particle acceleration in the open field line region above the polar cap (PC) of an isolated neutron star (NS) plays a fundamental role in our understanding and interpretation of high-energy emission from pulsars. The systematic study of particle acceleration and formation of electron-positron pair fronts above the PCs of NSs was initiated two decades ago. The detailed analysis of these processes is now possible with the development of pair cascade codes that enables us to calculate the spectra and pulse profiles of high-energy emission from pulsars. The calculation of pair formation and gamma-ray production is being improved to include new results on the PC physics. We briefly outline the current status of the PC model for pulsar high-energy emission, focusing on some of our most recent results on the theoretical modeling of the PC acceleration and gamma-ray emission.
Harding Alice K.
Muslimov Alexander G.
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