I-Love-Q relations for Neutron Stars with Dark Energy

2025/06/02 by Simone D’Onofrio, D'Onofrio, Simone
Earth and Planetary Sciences · Physics and Astronomy · #Cosmology and Gravitation Theories #FOS: Physical sciences #General Relativity and Quantum Cosmology (gr-qc) #Geophysics and Gravity Measurements #Pulsars and Gravitational Waves Research

paper · pdf · doi:10.48550/arxiv.2506.01889

openalex publication_date 2025/06/02 · openalex created_date 2025/10/14 · openalex updated_date 2026/07/28

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.

Citations

• DESI DR2 Results II: Measurements of Baryon Acoustic Oscillations and Cosmological Constraints
• Universal relations for non-rotating objects made of dark energy
• Compact Stars with Dark Energy in General Relativity and Modified Gravity
• Planck 2018 results
• Dark energy cosmology: the equivalent description via different theoretical models and cosmography tests
• Unified cosmic history in modified gravity: from F(R) theory to Lorentz non-invariant models
• Vacuum nonsingular black hole

Related

• I-Love-Q, and δM too: The role of the mass in universal relations of compact stars
• Linear analysis of I-C-Love universal relations for neutron stars
• I-Love-Q Relations of Fermion-Boson Stars
• Revisiting the I-Love-Q relations for superfluid neutron stars
• Theoretical modeling of approximate universality of tidally deformed neutron stars