Role of structure scalars on viscous and heat conducting spherical systems in f(R,T) gravity

摘要

In this paper, we analyze some dynamical features of spherical celestial objects through structure scalars in f(R,T) gravitational theory, where R and T are the Ricci scalar and the trace of energy–momentum tensor, respectively. In this framework, we consider our relativistic geometry to be spherical in shape filled with radiating viscous and shearing fluid content. We formulate extended version of structure scalars by orthogonal decomposition of the Riemann tensor with and without constant R and T backgrounds. We discuss the effects of dark source corrections on the construction of expansion and shear evolution equations via scalar variables. It is inferred that like general relativity, one can investigate the evolutionary stages of stellar compact objects with the help of extended scalar parameters.