Color–flavor locked strange stars in 4D Einstein–Gauss–Bonnet gravity

This work is devoted to the recently introduced Einstein–Gauss–Bonnet gravity in four dimensions. theory can bypass Lovelock’s theorem and avoids Ostrogradsky instability. The integrated part of this GB term which gives rise a non-trivial contribution gravitational dynamics limit D→4. Our main interest explore class static, spherically symmetric compact objects made strange matter. It believed that at ultra-high densities, quark matter may exist variety superconducting states, namely, Color–Flavor-Locked (CFL) phase. With these equations state (EoS) we conditions under stars are stable extreme context 4D EGB gravity. In addition, mass–radius relation examined effects coupling constant ‘α’ on stellar model, energy conditions, speed sound adiabatic stability studied. aim find observational constraints gravity, curve determined satisfying maximum mass constraint M∼2M⊙ for neutron stars. feature be relevant view recent observations claiming existence (hybrid or stars).