A systematic theoretical study of explosion energies in Core Collapse Supernovae

Yu Yamamoto, Shoichi Yamada

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

    Abstract

    We suggest a new experimental approach to conduct a systematic study in core collapse supernovae (CCSNe) theory. We provide toy pre-supernova stages with controlled core and silicon sulfer (Si+S) layer masses solving NSE and QSE compostions respectively. We also demonstrated 1D hydrodynamic simulations with light bulb approximation using 6 models from core collapse to explosion in order to study the dependence of the interior structures of pre-supernova stages on both explosion energies and nickel masses. During the core collapse our simulation showed that Si+S layer masses are most important in deciding the time evolution of mass accretion rates after bounce. We also found that the lighter core mass models produce the more energetic explosions and larger amounts of nickel masses. When the Si+S layer masses are lighter, mass accretion rates are enhanced so that the heavy core mass models are prevented from producing powerful explosions. Our simulation shows neccesity of early time explosion to reproduce 1051 erg .

    Original languageEnglish
    Title of host publicationProceedings of Science
    PublisherProceedings of Science (PoS)
    Volume07-11-July-2015
    Publication statusPublished - 2014
    Event13th Nuclei in the Cosmos, NIC 2014 - Debrecen, Hungary
    Duration: 2014 Jul 72014 Jul 11

    Other

    Other13th Nuclei in the Cosmos, NIC 2014
    CountryHungary
    CityDebrecen
    Period14/7/714/7/11

    Fingerprint

    supernovae
    explosions
    energy
    nickel
    simulation
    luminaires
    hydrodynamics
    silicon
    approximation

    ASJC Scopus subject areas

    • General

    Cite this

    Yamamoto, Y., & Yamada, S. (2014). A systematic theoretical study of explosion energies in Core Collapse Supernovae. In Proceedings of Science (Vol. 07-11-July-2015). [176] Proceedings of Science (PoS).

    A systematic theoretical study of explosion energies in Core Collapse Supernovae. / Yamamoto, Yu; Yamada, Shoichi.

    Proceedings of Science. Vol. 07-11-July-2015 Proceedings of Science (PoS), 2014. 176.

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

    Yamamoto, Y & Yamada, S 2014, A systematic theoretical study of explosion energies in Core Collapse Supernovae. in Proceedings of Science. vol. 07-11-July-2015, 176, Proceedings of Science (PoS), 13th Nuclei in the Cosmos, NIC 2014, Debrecen, Hungary, 14/7/7.
    Yamamoto Y, Yamada S. A systematic theoretical study of explosion energies in Core Collapse Supernovae. In Proceedings of Science. Vol. 07-11-July-2015. Proceedings of Science (PoS). 2014. 176
    Yamamoto, Yu ; Yamada, Shoichi. / A systematic theoretical study of explosion energies in Core Collapse Supernovae. Proceedings of Science. Vol. 07-11-July-2015 Proceedings of Science (PoS), 2014.
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