24 citations · 42 across the 3 of their papers we have counts for
13 papers · 1 filter
Polarization of the Crab Nebula with disordered magnetic components
Yuji Nakamura, Shinpei Shibata
In this paper, we present an expanding disc model to derive polarization properties of the Crab nebula. The distribution function of the plasma and the energy density of the magnet…
A Particle Simulation for the Global Pulsar Magnetosphere: the Pulsar Wind linked to the Outer Gaps
Tomohide Wada, Shinpei Shibata
Soon after the discovery of radio pulsars in 1967, the pulsars are identified as strongly magnetic (typically G) rapidly rotating ( Hz) neutron stars. How…
Subaru optical observations of the two middle-aged pulsars PSR B0656+14 and Geminga
Yuri A. Shibanov, Sergei V. Zharikov, Viktoria N. Komarova +6
We carried out a deep subarcsecond BRI imaging of the two middle-aged pulsars to establish their properties in the optical range. Both pulsars are detected at >10 sigma level. Gemi…
Outer-magnetospheric model for Vela-like pulsars:formation of sub-GeV spectrum
J. Takata, S. Shibata, K. Hirtotani
We investigate the -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 ca…
On the X-ray Image of The Crab Nebula: Comparison with Chandra Observations
S. Shibata, H. Tomatsuri, M. Shimanuki +2
An axisymmetric model for the Crab Nebula is constructed to examine the flow dynamics in the nebula. The model is based on that of Kennel and Coroniti (1984), although we assume th…
Electrodynamics of Outer-Gap Accelerator: Formation of Soft Power-law Spectrum Between 100 MeV and 3 GeV
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 l…