37 citations · 145 across the 31 of their papers we have counts for
31 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…
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…
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…
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,…
Arrow of time and gravitational entropy in collapse
Samarjit Chakraborty, Sunil D. Maharaj, Sarbari Guha +1
We investigate the status of the gravitational arrow of time in the case of a spherical collapse of a fluid that conducts heat and radiates energy. In particular, we examine the re…
Memory Effect of Gravitational Wave Pulses in PP-Wave Spacetimes
Sucheta Datta, Sarbari Guha
In this paper, we study the gravitational memory effect in pp-wave spacetimes due to the passage of a pulse having the form of a ramp profile through this spacetime. We have analyz…