Constraints on the nuclear symmetry energy via asteroseismology

Hajime Sotani, Ken'ichiro Nakazato, Kei Iida, Kazuhiro Oyamatsu

研究成果: ジャーナルへの寄稿Conference article

抄録

We examine the fundamental torsional oscillations of the crust in the neutron star. Especially, we focus on the crystalline properties obtained from macroscopic nuclear models. As a result, we find that the frequencies of fundamental torsional oscillations are sensitive to the density dependence of the symmetry energy, but almost independent of the incompressibility of symmetric nuclear matter. Identifying the lowest frequency among the quasi-periodic oscillations observed in the giant flares as the fundamental ℓ = 2 torsional oscillations, we put constraints on the density derivative of the symmetry energy as L ≃ 50 MeV.

元の言語英語
記事番号012016
ジャーナルJournal of Physics: Conference Series
453
発行部数1
DOI
出版物ステータス出版済み - 1 1 2013
イベント15th Conference on Recent Developments in Gravity, NEB 2012 - Chania, Crete, ギリシャ
継続期間: 6 20 20126 23 2012

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asteroseismology
oscillations
symmetry
incompressibility
nuclear models
energy
flares
neutron stars
crusts
low frequencies

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

これを引用

Constraints on the nuclear symmetry energy via asteroseismology. / Sotani, Hajime; Nakazato, Ken'ichiro; Iida, Kei; Oyamatsu, Kazuhiro.

:: Journal of Physics: Conference Series, 巻 453, 番号 1, 012016, 01.01.2013.

研究成果: ジャーナルへの寄稿Conference article

Sotani, Hajime ; Nakazato, Ken'ichiro ; Iida, Kei ; Oyamatsu, Kazuhiro. / Constraints on the nuclear symmetry energy via asteroseismology. :: Journal of Physics: Conference Series. 2013 ; 巻 453, 番号 1.
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