Study of charged stellar structures in f(R, T) gravity

摘要

This paper explores charged stellar structures whose pressure and density are related through polytropic equation of state (p =omega rho(sigma); omega is polytropic constant, p is pressure, rho denotes density and sigma is polytropic exponent) in the scenario of f(R, T) gravity (where R is the Ricci scalar and T is the trace of energy-momentum tensor). The Einstein-Maxwell field equations are solved together with the hydrostatic equilibrium equation for f(R, T) = R + 2 lambda T where lambda is the coupling constant, also called model parameter. We discuss different features of such configurations (like pressure, mass and charge) using graphical behavior for two values of sigma. It is found that the effects of model parameter lambda on different quantities remain the same for both cases. The energy conditions are satisfied and stellar configurations are stable in each case.