Spherical dust solution in f(R, T, R-mu nu T-mu nu) gravity

摘要

In this paper, we study the non-static spherically symmetric solution in the scenario of f(R, T, Q) gravity (R stands for the scalar curvature, T denotes the trace component of T-ab and Q = RabTab). The junction conditions are developed by taking interior and exterior metrics. For a specified model of this gravity, we formulate the field equations using a perfect fluid and discuss the solution for the dust case with constant scalar curvature and trace of the energy-momentum tensor. We evaluate the mass function for this solution and discuss the mass-radius relation as well as the surface redshift of the star. These show compatible results for suitable choice of parameters.