4 papers
Apparent horizon and causal structure of spacetime singularities
Koushiki, Pankaj S. Joshi
A major issue in general relativity and blackhole physics today is to determine the conditions when the spacetime singularities forming as end-states of gravitational collapse are…
A bonafide model of structure formation from gravitational collapse
Koushiki, Dipanjan Dey, Pankaj S. Joshi
This paper explores the cosmological implications of a scalar field with a specific potential, crucial for achieving the final equilibrium state of gravitational collapse. We consi…
Equilibrium states from gravitational collapse of minimally coupled scalar field with non-zero potential
Dipanjan Dey, Koushiki, Pankaj S. Joshi
We study the model of spherically symmetric and spatially homogeneous gravitational collapse of a minimally coupled scalar field. Our study focuses on obtaining the scalar field po…
Gravitational collapse of scalar and vector fields
Karim Mosani, Koushiki, Pankaj S. Joshi +2
We study here the unhindered gravitational collapse of spatially homogeneous (SH) scalar fields with a potential , as well as vector fields with a potenti…