Modeling Dark Sector in Horndeski Gravity at First-Order Formalism
Figure 2
The decelerate parameter (21) (a) and dark energy equation of state (25) (b) for , with and (blue curve), and , with and (red curve). The Hubble parameter (c) and scalar field (d) with the same values of parameters. All the cosmological observables are given as functions of the redshift .
