Impacts of dark matter on the -mode oscillation of hyperon star
arXiv:2109.01851 · doi:10.1103/PhysRevD.104.123006
Abstract
We investigate the -mode oscillation of the dark matter admixed hyperon star within the relativistic Cowling approximation. The macroscopic properties are calculated with the relativistic mean-field equation of states by assuming that the dark matter particles are inside the star. The -mode oscillation frequencies (only for ) are calculated with four different neutron star equation of states. We also check the effects of hyperons/dark matter and hyperons with dark matter equation of states on the -mode oscillations varying with different astrophysical quantities such as mass (), radius (), compactness (), surface red-shift (), average density (), dimensionless tidal deformability () of the neutron star. Significant changes have been seen in the -mode frequencies with and without hyperons/dark matter or hyperons+dark matter. Substantial correlations are observed between canonical frequencies and () and maximum frequencies and canonical ( ).
arXiv comment13 pages, 11 figures, 3 tables, Published in Physics. Rev. D
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