I-Love-Q universal relations remain valid within about 1% for neutron stars whose equation of state includes a coupled dark energy fluid in Lambda-CDM and quintessence-like models.
I-Love-Q relations for Neutron Stars with Dark Energy
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abstract
The influence of a dark energy fluid on the equation of state of neutron stars is investigated. A detailed analysis is conducted for such models, including the computation of the moment of inertia, the quadrupole moment, and the tidal Love number. The results demonstrate that these quantities are interconnected through the well-known equation of state independent I-Love-Q relations. This work extends the applicability of these universal relations to a broader class of neutron star models.
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I-Love-Q relations for Neutron Stars with Dark Energy
I-Love-Q universal relations remain valid within about 1% for neutron stars whose equation of state includes a coupled dark energy fluid in Lambda-CDM and quintessence-like models.