I-Love-Q Relations for Neutron Stars in dynamical Chern Simons Gravity

Understand

Neutron stars are ideal to probe, not only nuclear physics, but also strong-field gravity.

• Approximate universal relations insensitive to the star's internal structure exist among certain observables and are useful in testing General Relativity, as they project out the uncertainties in the equation of state.
• One such set of universal relations between the moment of inertia $(I)$, the tidal Love number and the quadrupole moment $(Q)$ has been studied both in General Relativity and in modified theories.
• In this paper, we study the relations in dynamical Chern-Simons gravity, a well-motivated, parity-violating effective field theory, extending previous work in various ways.