5 papers
Arrow of time problem in gravitational collapse
Samarjit Chakraborty, Sunil D. Maharaj, Rituparno Goswami +1
We investigate the arrow of time problem in the context of gravitational collapse of radiating stars in higher dimensions for both neutral and charged matter. The interior spacetim…
Structure Scalars for Charged Dissipative Spherical Collapse in Gravity
Uttaran Ghosh, Sarbari Guha
We examine the structure scalars constructed from the orthogonal splitting of the Riemann tensor for the spacetime metric describing the interior of a charged matter configuration…
From a collapsing radiating star to an evaporating black hole: A smooth transition from classical to quantum entropy
Sarbari Guha, Shamima Khan, Rituparno Goswami
We present a robust mechanism where the geometrical free-gravitational entropy of an isolated astrophysical radiating star undergoing continual gravitational collapse, as measured…
Formation of Singularity and Apparent Horizon for Dissipative Collapse in Theory of Gravity
Uttaran Ghosh, Sarbari Guha
In this paper, we consider the spherically symmetric gravitational collapse of isotropic matter undergoing dissipation in the form of heat flux, with a generalized Vaidya exterior,…
Vaidya-like exterior solution and formation of singularity in theory of gravity
Uttaran Ghosh, Sarbari Guha
In this paper, we study the gravitational collapse of a fluid ball undergoing dissipation in the form of heat flux, in the framework of gravity. To apply the junction cond…