Effects of magnetic fields on proto-neutron star winds

Hirotaka Ito, Shoichi Yamada, Kohsuke Sumiyoshi, Shigehiro Nagataki

    Research output: Contribution to journalArticle

    2 Citations (Scopus)

    Abstract

    We investigate the effects of magnetic fields on proto-neutron star winds by performing numerical simulations. We assume that the atmosphere of a proto-neutron star has a homogenous magnetic field (ranging from 10 12G to 5 × 1015G) perpendicular to the radial direction and examine the dependence of the three key quantities (the dynamical time scale τdyn, electron fraction Ye, and entropy per baryon s) for the successful r-process on the magnetic field strength. Our results show that even with a magneter-class field strength, ∼ 10 15G, the features of the wind dynamics differ only little from those of non-magnetic winds and that the conditions for an effective r-process are not realized.

    Original languageEnglish
    Pages (from-to)995-1020
    Number of pages26
    JournalProgress of Theoretical Physics
    Volume114
    Issue number5
    Publication statusPublished - 2005 Nov

    Fingerprint

    neutron stars
    field strength
    magnetic fields
    baryons
    entropy
    atmospheres
    electrons
    simulation

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

    Cite this

    Ito, H., Yamada, S., Sumiyoshi, K., & Nagataki, S. (2005). Effects of magnetic fields on proto-neutron star winds. Progress of Theoretical Physics, 114(5), 995-1020.

    Effects of magnetic fields on proto-neutron star winds. / Ito, Hirotaka; Yamada, Shoichi; Sumiyoshi, Kohsuke; Nagataki, Shigehiro.

    In: Progress of Theoretical Physics, Vol. 114, No. 5, 11.2005, p. 995-1020.

    Research output: Contribution to journalArticle

    Ito, H, Yamada, S, Sumiyoshi, K & Nagataki, S 2005, 'Effects of magnetic fields on proto-neutron star winds', Progress of Theoretical Physics, vol. 114, no. 5, pp. 995-1020.
    Ito, Hirotaka ; Yamada, Shoichi ; Sumiyoshi, Kohsuke ; Nagataki, Shigehiro. / Effects of magnetic fields on proto-neutron star winds. In: Progress of Theoretical Physics. 2005 ; Vol. 114, No. 5. pp. 995-1020.
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