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

    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 languageEnglish
    Pages (from-to)387-388
    Number of pages2
    JournalProgress of Theoretical Physics Supplement
    Volume155
    Publication statusPublished - 2004

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    magnetohydrodynamic simulation
    gravitational collapse
    gamma ray bursts
    stars
    centrifugal force
    magnetic fields
    simulation

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

    Cite this

    General relativistic MHD simulations of the gravitational collapse of a rotating star with magnetic field as a model of gamma-ray bursts. / Mizuno, Yosuke; Shibata, Kazunari; Yamada, Shoichi; Koide, Shinji.

    In: Progress of Theoretical Physics Supplement, Vol. 155, 2004, p. 387-388.

    Research output: Contribution to journalArticle

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    AU - Yamada, Shoichi

    AU - Koide, Shinji

    PY - 2004

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