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Speaker |
Sotani, Hajime |
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Coauthors |
Iida, Kei; Oyamatsu, Kazuhiro |
| Talk Title |
Constraint on the equation of state from the quasi-periodic oscillations in ginat flares |
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Abstract |
We consider crustal torsional oscillations, taking into account the effect of the pasta structure. We find from eigenmode analyses for various models of the equation of state of uniform nuclear matter that the fundamental frequencies of such oscillations are almost independent of the incompressibility of symmetric nuclear matter K0, but strongly depend on the slope parameter of the nuclear symmetry energy L. On the other hand, we also find that the frequencies of the 1st overtone depend strongly on not only L but also K0. By comparing the resultant oscillations to the frequencies of quasi-periodic oscillations, we can constraint on the values of L and K0. Furthermore, considering the constraints on K0 obtained from the terrestrial nuclear experiments, we can successfully make a more severe constant on L. |
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