Gravastars in f(G, T2) Gravity

The focus of our work is the analysis of a specific celestial structure known as a gravastar in the background of f(G; T-2) gravity. To derive the field equations and conservation laws related to this modified theory, we examine the spherically static symmetric geometry consisting of isotropic pressure. The Schwarzschild solution represents the layer of the outside vacuum. The equation of state (EoS), which defines the equality for pressure of ultra-relativistic matter and energy density, portrays the central layer. However, the inner layer shows that the repulsive pressure is equivalent to the energy density and exhibits a repulsive constraint on the core of the intermediate shell. We examine the spherical gravastar model using several suitable realistic properties. We deduce different parameters corresponding to the self-gravitating structure.