Method of Particle Simulation for the Pulsar Magnetosphere by Use of Special Purpose Computer, GRAPE-6

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Abstract

The 3rd Suzaku international Conference "Energetic Cosmos : from Suzaku to ASTRO-H" (June 29-July 2, 2009. Grand Park Otaru Hotel), Otaru, Hokkaido Japan

The particle acceleration mechanism of pulsars has been an outstanding problem for more than forty years. A breakthrough can be provided by a large particle-simulation for the global magnetosphere showing the formation of the field-aligned electric field. However, this demands heavy calculation of Coulomb interaction. We have resolved this difficulty by use of GRAPE, which is a massively parallel special purpose computer for astronomical N-body problem at National Astronomical Observatory of Japan. Note that GRAPE can calculate Coulomb force as well as gravitational force because of the same inverse-square law and of sign-bit available with GRAPE. In this paper, we present a method of particle simulation for the global magnetosphere including electron-positron pair creation. We show some initial results of the simulation.

Meeting sponsors: The University of Tokyo, The Institute of Physical and Chemical Research, The Japan Society for the Promotion of Science

資料番号: AA0064574086

レポート番号: JAXA-SP-09-008E

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