Evolution of charged viscous fluids in f(R, T) gravity
No Thumbnail Available
Date
2019-11
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
UMT Lahore
Abstract
In this thesis, dynamical analysis for spherically symmetric gravitating sources is presented in f (r, t ) gravity, where r and t are scalar curva- ture and trace of energy momentum tensor respectively. The inner fluid distribution is considered to be charged, viscous, anisotropic and modified field equations are constructed. Dynamical equations are developed by tak- ing divergence of energy momentum tensor. The perturbation scheme is applied to dynamical equations for stability analysis. Perturbed form of dynamical equations leads to the development and study of gravitational evolution. The stability analysis is carried out in newtonian limit (nl) and post newtonian limit (pnl) to workout corrections in weak field regime. It is observed that fluid distribution such as heat flux, viscosity, anisotropy and mass of the celestial objects have significant implications on collapsing process as well as stability.