Gravitational waves from the axial perturbations of hyperon stars |
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Authors: | Wen De-Hua Yan Jing Liu Xue-Mei |
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Affiliation: | Department of Physics, South China University of Technology, Guangzhou 510641, China |
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Abstract: | The eigen-frequencies of the axial w-mode oscillations of hyperon stars are examined. It is shown that as the appearance of hyperons softens the equation of state of the super-density matter, the frequency of gravitational waves from the axial w-mode of hyperon star becomes smaller than that of a traditional neutron star at the same stellar mass. Moreover, the eigenfrequencies of hyperon stars also have scaling universality. It is shown that the EURO third-generation gravitational-wave detector has the potential to detect the gravitational-wave signal emitted from the axial w-mode oscillations of a hyperon star. |
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Keywords: | hyperon star oscillation gravitational wave |
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