Effect of electric field on string-oriented perfect fluid collapse in f(R) gravity

This work investigates the nature of singularity formed from string-oriented charged perfect fluid collapse in theory of f(R) gravity. The spherically symmetric spacetime is assumed to be filled with a string-oriented charged perfect fluid. The gravitational collapse of the fluid is analyzed to understand the effects of electric field on the time and radii of apparent horizons and singularity formation. The presence of an electric field was discovered to increase the mass of the collapsing system, the radii of apparent horizon development, and the time gap between the event horizon and singularity. The term f(R-0) acts as an anti-gravity term. However, the presence of electric field accelerates the gravitational collapse.