R-process nucleosynthesis in supernova explosion

M. Saruwatari, M. Hashimoto, K. Kotake, Shoichi Yamada

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    We investigate the possibility of the r-process during the magnetohydrodynamical (MHD) explosion of supernova in a massive star of 13M with the effects of neutrinos included. Contrary to the case of the spherical explosion, jet-like explosion due to the combined effects of rotation and magnetic field lowers the electron fraction significantly inside the layers. We find that the ejected material of low electron fraction responsible for the r-process comes out from the inner deep region of the core that is made up of iron-group nuclei. This leads to the production of the second to third peak in the solar r-process elements. We suggest that there are some variations in the r-process nucleosynthesis according to the initial conditions of rotational and magnetic fields.

    Original languageEnglish
    Title of host publicationAIP Conference Proceedings
    Pages420-422
    Number of pages3
    Volume1377
    DOIs
    Publication statusPublished - 2011
    Event3rd International Conference on Frontiers in Nuclear Structure, Astrophysics, and Reactions, FINUSTAR 3 - Rhodes
    Duration: 2010 Aug 232010 Aug 27

    Other

    Other3rd International Conference on Frontiers in Nuclear Structure, Astrophysics, and Reactions, FINUSTAR 3
    CityRhodes
    Period10/8/2310/8/27

    Fingerprint

    nuclear fusion
    supernovae
    explosions
    massive stars
    magnetic fields
    electrons
    neutrinos
    iron
    nuclei

    Keywords

    • magneto-hydorodynamics
    • neutrino
    • r-process
    • supernovae

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

    Cite this

    Saruwatari, M., Hashimoto, M., Kotake, K., & Yamada, S. (2011). R-process nucleosynthesis in supernova explosion. In AIP Conference Proceedings (Vol. 1377, pp. 420-422) https://doi.org/10.1063/1.3628432

    R-process nucleosynthesis in supernova explosion. / Saruwatari, M.; Hashimoto, M.; Kotake, K.; Yamada, Shoichi.

    AIP Conference Proceedings. Vol. 1377 2011. p. 420-422.

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Saruwatari, M, Hashimoto, M, Kotake, K & Yamada, S 2011, R-process nucleosynthesis in supernova explosion. in AIP Conference Proceedings. vol. 1377, pp. 420-422, 3rd International Conference on Frontiers in Nuclear Structure, Astrophysics, and Reactions, FINUSTAR 3, Rhodes, 10/8/23. https://doi.org/10.1063/1.3628432
    Saruwatari M, Hashimoto M, Kotake K, Yamada S. R-process nucleosynthesis in supernova explosion. In AIP Conference Proceedings. Vol. 1377. 2011. p. 420-422 https://doi.org/10.1063/1.3628432
    Saruwatari, M. ; Hashimoto, M. ; Kotake, K. ; Yamada, Shoichi. / R-process nucleosynthesis in supernova explosion. AIP Conference Proceedings. Vol. 1377 2011. pp. 420-422
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