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HIGH-ENERGY EMISSION FROM PULSAR MAGNETOSPHERES

KOUICHI HIROTANI

ASIAA/National Tsing Hua University, TIARA, P. O. Box 23-141, Taipei, Taiwan, R.O.C.

Postal address: TIARA, Department of Physics, National Tsing Hua University, 101, Sec. 2, Kuang Fu Rd., Hsinchu, Taiwan 300.

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https://doi.org/10.1142/S0217732306020846Cited by:29 (Source: Crossref)

Abstract

A synthesis of the present knowledge on gamma-ray emission from the magnetosphere of a rapidly rotating neutron star is presented, focusing on the electrodynamics of particle accelerators. The combined curvature, synchrotron, and inverse-Compton emission from ultra-relativistic positrons and electrons, which are created by two-photon and/or one-photon pair creation processes, or emitted from the neutron-star surface, provide us with essential information on the properties of the accelerator — electric potential drop along the magnetic field lines. A new accelerator model, which is a mixture of traditional inner gap and outer gap models, is also proposed, by solving the Poisson equation for the electrostatic potential together with the Boltzmann equations for particles and gamma-rays in the two-dimensional configuration and two-dimensional momentum spaces.

Keywords:

PACS: 97.60.Gb

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