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Moment of inertia, quadrupole moment, Love number of neutron star and their relations with strange matter equations of state
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abstract
We investigate the impact of strange matter equations of state involving $\Lambda$ hyperons, Bose-Einstein condensate of $K^-$ mesons and first order hadron-quark phase transition on moment of inertia, quadrupole moment and tidal deformability parameter of slowly rotating neutron stars. All these equations of state are compatible with the 2 M$_{solar}$ constraint. The main findings of this investigation are the universality of the I-Q and I-Love number relations, which are preserved by the EoSs including $\Lambda$ hyperons and antikaon condensates, but broken in presence of a first order hadron-quark phase transition. Furthermore, it is also noted that the quadrupole moment approaches the Kerr value of a black hole for maximum mass neutron stars.
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Cited by 1 Pith paper
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Investigating Universal Relations in Compact Stars featuring $\Delta-$Admixed Exotic Dense Matter
Delta-admixed hypernuclear stars follow the I-Love-Q universal relations and a tight f-mode tidal relation, while the p-mode relation is much more composition-sensitive.
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