English
Related papers

Related papers: Electrodynamic Structure of Outer Gap Accelerators…

200 papers

We study the gamma-ray emissions from an outer-magnetospheric potential gap around a rotating neutron star. Migratory electrons and positrons are accelerated by the electric field in the gap to radiate copious gamma-rays via curvature…

Astrophysics · Physics 2009-10-31 K. Hirotani

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 field along the magnetic field lines. Migratory electrons…

Astrophysics · Physics 2007-05-23 Kouichi Hirotani , Shinpei Shibata

We investigate a stationary particle acceleration zone in the outer magnetosphere of a spinning neutron star. The charge depletion due to a global current causes a large electric field along the magnetic field lines. Migratory electrons…

Astrophysics · Physics 2009-10-31 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 large electric field along the magnetic field lines.…

Astrophysics · Physics 2009-11-06 K. Hirotani , S. 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 large electric field along the magnetic field lines.…

Astrophysics · Physics 2007-05-23 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 large electric field along the magnetic field lines.…

Astrophysics · Physics 2008-11-26 Kouichi Hirotani , Alice K. Harding , 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 large electric field along the magnetic field lines.…

Astrophysics · Physics 2009-11-07 Kouichi Hirotani , Shinpei Shibata

We investigate a stationary pair production cascade in the outer magnetosphere of an isolated, spinning neutron star. The charge depletion due to global flows of charged particles, causes a large electric field along the magnetic field…

Astrophysics · Physics 2008-11-26 Kouichi Hirotani

We investigate the $\gamma$-ray emission from a outer-gap accelerator, which is located in the outer-magnetosphere of a pulsar. The charge depletion from the Goldreich-Julian density causes a large electric field along the magnetic field…

Astrophysics · Physics 2009-11-10 J. Takata , S. Shibata , K. Hirtotani

We develop a model for gamma-ray emission from the outer magnetosphere of pulsars (the outer-gap model). The charge depletion causes a large electric field which accelerates electrons and positrons. We solve the electric field with…

Astrophysics · Physics 2007-05-23 Junpei Takata , Sinpei Shibata , Kouichi Hirotani

We investigate the particle accelerator that arises in a rotating neutron-star magnetosphere. Solving the Poisson equation for the electro-static potential, the Boltzmann equations for relativistic electrons and positrons, and the radiative…

High Energy Astrophysical Phenomena · Physics 2015-06-23 Kouichi Hirotani

We investigate the electrodynamics of an outer gap in the meridional plane of the aligned-rotator. The charge depletion from the Goldreich-Julian charge density causes a large electric field along the magnetic field line. The electrons or…

Astrophysics · Physics 2016-08-30 J. Takata , S. Shibata , K. Hirotani

The spectral characteristics of the pulsed gamma-ray emission from outer-magnetospheric particle accelerators are investigated. Either positrons or electrons are accelerated outwards by the magnetic-field-aligned electric field to emit…

High Energy Astrophysical Phenomena · Physics 2015-05-28 Kouichi Hirotani

It's generally believed that young and rapidly rotating pulsars are important sites of particle's acceleration, in which protons can be accelerated to relativistic energy above the polar cap region if the magnetic moment is antiparallel to…

High Energy Astrophysical Phenomena · Physics 2015-06-15 Zhi-Xiong Li , Gui-Fang Lin , Wei-Wei Na

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…

Astrophysics · Physics 2009-11-11 Kouichi Hirotani

We investigate the electrodynamic structure of a pulsar outer-magnetospheric particle accelerator and the resultant gamma-ray emission. By considering the condition for the accelerator to be self-sustained, we derive how the…

High Energy Astrophysical Phenomena · Physics 2015-06-12 Kouichi Hirotani

A self-consistent electrodynamics of a particle accelerator in a rotating neutron-star magnetosphere is investigated on the two-dimensional poloidal plane. Solving the Poisson equation for the electrostatic potential together with the…

Astrophysics · Physics 2007-05-23 K. Hirotani

We investigate the electrostatic acceleration of electrons and positrons in the vicinity of the event horizon, applying the pulsar outer-gap model to black hole magnetospheres. During a low accretion phase, the radiatively inefficient…

High Energy Astrophysical Phenomena · Physics 2016-12-21 Kouichi Hirotani , Hung-Yi Pu , Lupin Chun-Che Lin , Hsiang-Kuang Chang , Makoto Inoue , Albert K. H Kong , Satoki Matsushita , Pak-Hin T. Tam

Recent studies suggest that pulsars could be strong sources of TeV muon neutrinos provided positive ions are accelerated by pulsar polar caps to PeV energies. In such a situation muon neutrinos are produced through the delta resonance in…

Astrophysics · Physics 2010-02-03 A. Bhadra , R. K. Dey

We analytically investigate the condition for a particle accelerator to be active in the outer magnetosphere of a rotation-powered pulsar. Within the accelerator (or the gap), magnetic-field-aligned electric field accelerates electrons and…

High Energy Astrophysical Phenomena · Physics 2015-05-28 Ren-Bo Wang , Kouichi Hirotani
‹ Prev 1 2 3 10 Next ›