Nucleosynthesis in magnetohydrodynamical jets from collapsars

M. Ono, M. Hashimoto, S. Fujimoto, K. Kotake, Shoichi Yamada

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

    Abstract

    We investigate the heavy-element nucleosynthesis of a massive star whose mass in the main sequence stage is Mms=70M. Detailed calculations of the nucleosynthesis are performed during the hydrostatic stellar evolution until the core composed of iron-group nuclei begins to collapse. As a supernova explosion model, a collapsar model is constructed whose jets are driven by magnetohydrodynamical effects of a differentially rotating core. The heavy-element nucleosynthesis inside the jet of a collapsar model is followed along the trajectories of stream lines of the jet. We combine the results of both hydrostatic and heavy-element nucleosyntheses to compare with the solar abundances. We find that neutron-rich elements of 70<A<140 are highly overproduced relative to the solar abundances. Therefore, we conclude that this scenario should be rare and elements of A≲70 are compensated for other supernova explosion models. We find also that different mass formula changes significantly the production of elements of A>140.

    Original languageEnglish
    Title of host publicationAIP Conference Proceedings
    Pages411-413
    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
    heavy elements
    hydrostatics
    stellar evolution
    massive stars
    supernovae
    explosions
    trajectories
    iron
    neutrons
    nuclei

    Keywords

    • Nucleosynthesis
    • Supernova explosion

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

    Cite this

    Ono, M., Hashimoto, M., Fujimoto, S., Kotake, K., & Yamada, S. (2011). Nucleosynthesis in magnetohydrodynamical jets from collapsars. In AIP Conference Proceedings (Vol. 1377, pp. 411-413) https://doi.org/10.1063/1.3628429

    Nucleosynthesis in magnetohydrodynamical jets from collapsars. / Ono, M.; Hashimoto, M.; Fujimoto, S.; Kotake, K.; Yamada, Shoichi.

    AIP Conference Proceedings. Vol. 1377 2011. p. 411-413.

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

    Ono, M, Hashimoto, M, Fujimoto, S, Kotake, K & Yamada, S 2011, Nucleosynthesis in magnetohydrodynamical jets from collapsars. in AIP Conference Proceedings. vol. 1377, pp. 411-413, 3rd International Conference on Frontiers in Nuclear Structure, Astrophysics, and Reactions, FINUSTAR 3, Rhodes, 10/8/23. https://doi.org/10.1063/1.3628429
    Ono M, Hashimoto M, Fujimoto S, Kotake K, Yamada S. Nucleosynthesis in magnetohydrodynamical jets from collapsars. In AIP Conference Proceedings. Vol. 1377. 2011. p. 411-413 https://doi.org/10.1063/1.3628429
    Ono, M. ; Hashimoto, M. ; Fujimoto, S. ; Kotake, K. ; Yamada, Shoichi. / Nucleosynthesis in magnetohydrodynamical jets from collapsars. AIP Conference Proceedings. Vol. 1377 2011. pp. 411-413
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