88 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Aryabhatta Research Institute of Observational SciencesIN13 papers
- Indian Institute of AstrophysicsIN6 papers
- Inter-University Centre for Astronomy and AstrophysicsIN6 papers
- Deen Dayal Upadhyaya Gorakhpur UniversityIN5 papers
- Saha Institute of Nuclear PhysicsIN5 papers
- University of DelhiIN5 papers
- Center for Excellence in Basic SciencesIN3 papers
- Kavli Institute for Theoretical SciencesCN3 papers
- Peking UniversityCN3 papers
- Central University of JammuIN2 papers
- Kumaun UniversityIN2 papers
- Physical Research LaboratoryIN2 papers
14 papers · 1 filter
Spherical trapped surfaces in n-dimensional general relativity
Ayan Chatterjee, Suresh C. Jaryal, Akshay Kumar
In this paper, we examine gravitational collapse of matter fields in -dimensional general relativity. The matter energy-momentum tensor under consideration includes dust, perfec…
Effects of electromagnetic field on a radiating star
Suresh C. Jaryal, Ayan Chatterjee, Akshay Kumar
In this paper we study the shear free spherical symmetric gravitational collapse of charged radiating star. All the physical quantities including pressure, density are regular. Ene…
Gravitational Collapse in the EGB Gravity
Ayan Chatterjee, Avirup Ghosh, Suresh Jaryal
The Einstein- Gauss- Bonnet (EGB) gravity is an important modification of the Einstein theory of gravity and, for many gravitational phenomena, the Gauss- Bonnet (GB) correction te…
Gravitationally collapsing stars in gravity
Ayan Chatterjee, Suresh C. Jaryal
The gravitational dynamics of a collapsing matter configuration which is simultaneously radiating heat flux is studied in gravity. Three particular functional forms in $f(R)…
Radiating-collapsing models satisfying Karmarkar condition
Suresh C. Jaryal
This paper presents a class of exact spherical symmetric solutions of the Einstein equations admitting heat-conducting anisotropic fluid as a collapsing matter. The exterior spacet…
Dynamical horizons and Super-Translation transitions of the horizon
Ayan Chatterjee, Avirup Ghosh
A condition is defined which determines if a supertranslation is induced in the course of a general evolution from one isolated horizon phase to another via a dynamical horizon. Th…
Exponential corrections to black hole entropy
Ayan Chatterjee, Amit Ghosh
Using the quasilocal properties alone we show that the area spectrum of a black hole horizon must be discrete, independent of any specific quantum theory of gravity. The area spect…
Marginally Trapped Surfaces in Spherical Gravitational Collapse
Ayan Chatterjee, Amit Ghosh, Suresh Jaryal
This paper deals with a detail study of gravitational collapse of dust and viscous fluids under the assumptions of spherical symmetry. Our main goal is to closely analyze the horiz…
Joining Spacetimes on Fractal Hypersurfaces
Ayan Chatterjee, Ankit Anand
The theory of fractional calculus is attracting a lot of attention from mathematicians as well as physicists. The fractional generalisation of the well-known ordinary calculus is b…
Quasilocal first law of black hole dynamics from local Lorentz transformations
Ayan Chatterjee, Avirup Ghosh
Quasilocal formulations of black hole are of immense importance since they reveal the essential and minimal assumptions required for a consistent description of black hole horizon,…
Quasilocal rotating conformal Killing horizons
Ayan Chatterjee, Avirup Ghosh
The formulation of quasi-local conformal Killling horizons(CKH) is extended to include rotation. This necessitates that the horizon be foliated by 2-spheres which may be distorted.…
Quasilocal conformal Killing horizons: Classical phase space and the first law
Ayan Chatterjee, Avirup Ghosh
In realistic situations, black hole spacetimes do not admit a global timelike Killing vector field. However, it is possible to describe the horizon in a quasilocal setting by intro…
Hawking radiation from dynamical horizons
Ayan Chatterjee, Bhramar Chatterjee, Amit Ghosh
In completely local settings, we establish that a dynamically evolving black hole horizon can be assigned a Hawking temperature. Moreover, we calculate the Hawking flux and show th…
Entropy of Black Holes in N=2 Supergravity
Ayan Chatterjee
Using the techniques of isolated horizon formalism, we construct the space of solutions of asymptotically flat extremal black holes in N=2 pure supergravity in 4 dimensions. We pro…