Final fate of charged anisotropic fluid collapse in f(R) gravity.

In this paper, the spherically symmetric gravitational collapse of anisotropic fluid in the presence of charge in metric f (R) theory is analyzed. We consider the static and non static spherically symmetric spacetimes for outer and inner regions of collapsing object respectively. For the smooth matching of inner and outer regions, the Senovilla as well as Darmois matching conditions are utilized. The closed form solutions are obtained from field equations. Moreover, we examine the apparent horizons and their physical significance. The effect of cosmological constant and f (R) term is same and the collapsing rate speeds up as compared to that of anisotropic fluid case when the electromagnetic field is introduced. Electromagnetic charge also affects the time interval of singularities and cosmological horizons. [ABSTRACT FROM AUTHOR]