著者

SOTANI Hajime

出版者

Publication Office, Progress of Theoretical Physics

雑誌

Progress of theoretical physics. Supplement (ISSN:03759687)

巻号頁・発行日

no.196, pp.471-475, 2012-10-22

参考文献数

10

被引用文献数

1

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We show that the shear modes in the neutron star crust are quite sensitive to the existence of nonuniform nuclear structures, the so-called "pasta". Due to the existence of pasta phase, the frequencies of shear modes are reduced, where the dependence of fundamental frequency is different from that of overtones. Since the torsional shear frequencies depend strongly on the structure of pasta phase, through the observations of stellar oscillations, one can probe the pasta structure in the crust, although that is quite difficult via the other observations. Additionally, considering the effect of pasta phase, we show the possibility to explain the all observed frequencies in the SGR 1806-20 with using only crust torsional shear modes.