Rotational stellar structures based on the Lagrangian variational principle

Nobutoshi Yasutake, Kotaro Fujisawa, Shoichi Yamada

    Research output: Contribution to journalArticle

    Abstract

    A new method for multi-dimensional stellar structures is proposed in this study. As for stellar evolution calculations, the Heney method is the defacto standard now, but basically assumed to be spherical symmetric. It is one of the difficulties for deformed stellar-evolution calculations to trace the potentially complex movements of each fluid element. On the other hand, our new method is very suitable to follow such movements, since it is based on the Lagrange coordinate. This scheme is also based on the variational principle, which is adopted to the studies for the pasta structures inside of neutron stars. Our scheme could be a major break through for evolution calculations of any types of deformed stars: proto-planets, proto-stars, and proto-neutron stars, etc.

    Original languageEnglish
    Article number012006
    JournalJournal of Physics: Conference Series
    Volume861
    Issue number1
    DOIs
    Publication statusPublished - 2017 Jun 13

    Fingerprint

    stellar structure
    variational principles
    stellar evolution
    neutron stars
    Lagrange coordinates
    stars
    planets
    fluids

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

    Cite this

    Rotational stellar structures based on the Lagrangian variational principle. / Yasutake, Nobutoshi; Fujisawa, Kotaro; Yamada, Shoichi.

    In: Journal of Physics: Conference Series, Vol. 861, No. 1, 012006, 13.06.2017.

    Research output: Contribution to journalArticle

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