Dynamical conditions and causal transport of dissipative spherical collapse in f(R, T) gravity

In this paper, we have investigated the non-adiabatic spherical gravitational collapse in the framework of the f(R, T) theory of gravity with a locally anisotropic fluid that undergoes dissipation in the form of heat flux, free-streaming radiation, and shearing viscosity. The dynamical equations are analyzed in detail, both in the Newtonian and post-Newtonian regimes. Finally, we couple the dynamical equations to the full causal transport equation in the context of Israel-Stewart theory of dissipative systems. This yields us a better understanding of the collapse dynamics and may be connected to various astrophysical consequences.

Automated summary

In this paper, the non-adiabatic spherical gravitational collapse in the framework of the f(R, T) theory of gravity with an anisotropic fluid undergoing dissipation was investigated. The dynamical equations were analyzed in detail, both in Newtonian and post-Newtonian regimes, and coupled to the causal transport equation in the context of Israel-Stewart theory of dissipative systems, providing a better understanding of collapse dynamics with potential astrophysical implications.