4 papers
Electrodynamic Structure of an Outer-Gap Accelerator: Implausibility of Super Goldreich-Julian Current
Kouichi Hirotani, Shinpei Shibata
We investigate a stationary pair production cascade in the outer magnetosphere of a spinning neutron star. The charge depletion due to global flows of charged particles, causes a l…
Electrodynamic Structure of an Outer-Gap Accelerator: Gamma-Ray Emission from the Crab Pulsar
Kouichi Hirotani, Shinpei Shibata
We investigate a stationary pair production cascade in the outer magnetosphere of a spinning neutron star. The charge depletion due to a global current, causes a large electric fie…
Composition of active galactic nuclei jets: pair-plasma dominance in the 3C 345 and 3C 279 jets
Kouichi Hirotani
We investigate whether the parsec-scale jets of quasars 3C 345 and 3C 279 are dominated by a normal (proton-electron) plasma or a pair (electron-positron) plasma. We first present…
Electrodynamic Structure of Outer Gap Accelerators: Invisibility of Pulsed Tev Fluxes
K. Hirotani
We study the structure of an outer-magnetospheric gap around a rotating neutron star. Migratory electrons and positrons are accelerated by the electric field exerted in the gap and…