Cluster of stars in f (G, T) gravity

This paper is devoted to analyze the dynamical impacts off (g, T) gravity model on the cluster of stars. For this motive, we consider the spherically symmetric interior geometry with anisotropic fluid as analogous to cluster of stars distributions. We express the modified field equations by taking a particular model off (g, T), i.e. f (g, T) = f (T) + f (g ). In order to explore the evolutionary behavior of cluster of stars, the observational data of a compact star 4U1820 - 30 is used. We construct the modified scalar functions by orthogonal splitting of Riemann tensor in f (g, T) theory of gravity and find the factors causing density irregularities in the framework. We calculate the evolution parameters by using these scalar functions. Moreover, we also investigate the structure scalars for dust ball. The dynamical effects on cluster of stars are examined via structure scalars in the presence of Gauss-Bonnet gravity. It is found that Gauss-Bonnet parameter representing exotic material in the cluster plays a vital role in governing the dynamics of cluster of stars.