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

doi:10.1143/PTPS.155.387

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

^*Corresponding author for this work

School of Advanced Science and Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

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 language	English
Pages (from-to)	387-388
Number of pages	2
Journal	Progress of Theoretical Physics Supplement
Volume	155
DOIs	https://doi.org/10.1143/PTPS.155.387
Publication status	Published - 2004

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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abstract = "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.",

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AU - Mizuno, Yosuke

AU - Shibata, Kazunari

AU - Yamada, Shoichi

AU - Koide, Shinji

PY - 2004

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AB - 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.

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

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