General relativistic MHD simulations of the gravitational collapse of a rotating star with magnetic field as a model of gamma-ray bursts

Yosuke Mizuno, Kazunari Shibata, Shoichi Yamada, Shinji Koide

Research output: Contribution to journalArticle


We have performed 2.5-dimensional general relativistic magnetohydrodynamic (MHD) simulations of collapsars as a model of gamma ray bursts (GRBs). This simulation showed the formation of a disk-like structure and the generation of a mildly relativistic jet (∼ 0.3 c). We have found the jet is accelerated by the magnetic pressure and the centrifugal force and is collimated by the pinching force of the toroidal magnetic field amplified by the rotation.

Original languageEnglish
Pages (from-to)387-388
Number of pages2
JournalProgress of Theoretical Physics Supplement
Publication statusPublished - 2004 Jan 1


ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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