Kouichi Hirotani 2007 ApJ 662 1173 doi:10.1086/517510
Kouichi Hirotani1
Show affiliationsWe investigate particle accelerators in rotating neutron-star magnetospheres by simultaneously solving the Poisson equation for the electrostatic potential together with the Boltzmann equations for electrons, positrons, and photons on the poloidal plane. Applying the scheme to the three pulsars, Crab, Vela, and PSR B1951+32, we demonstrate that the observed phase-averaged spectra are basically reproduced from infrared to very high energies. It is found that the Vela's spectrum in 10-50 GeV is sensitive to the three-dimensional magnetic field configuration near the light cylinder; thus, a careful argument is required to discriminate the inner-gap and outer-gap emissions using a gamma-ray telescope like GLAST. It is also found that PSR B1951+32 has a large inverse-Compton flux in TeV energies, which can be detected by ground-based air Cerenkov telescopes as a pulsed emission.
gamma rays: observations; gamma rays: theory; magnetic fields; methods: numerical; pulsars: individual (B1951+32, Crab, Vela)
Issue 2 (2007 June 20)
Received 2006 November 17, accepted for publication 2007 January 22
Kouichi Hirotani 2007 ApJ 662 1173
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