179 citations · 676 across the 21 of their papers we have counts for
21 papers
Gravastars on the brane with a timelike extra dimension
Shounak Ghosh, Rikpratik Sengupta, Kazuharu Bamba
We construct a gravastar configuration within the Shtanov-Sahni (SS) braneworld scenario, characterized by a timelike extra dimension and negative brane tension. Unlike classical b…
Gravastar in the framework of Loop Quantum Cosmology
Shounak Ghosh, Rikpratik Sengupta, Mehedi Kalam
In this paper we attempt to construct a regular gravastar model using the UV corrected framework of Loop Quantum Cosmology. We find that a stable gravastar model can be constructed…
Lorentzian wormhole in the framework of loop quantum cosmology
Rikpratik Sengupta, Shounak Ghosh, Mehedi Kalam
In this paper, we construct a traversable static Lorentzian wormhole in the effective scenario of Loop Quantum Cosmology (LQC), where the field equations are modified due to the ul…
Traversable Lorentzian wormhole on the Shtanov-Sahni braneworld with matter obeying the energy conditions
Rikpratik Sengupta, Shounak Ghosh, M. Kalam
In this paper we have explored the possibility of constructing a traversable wormhole on the Shtanov-Sahni braneworld with a timelike extra dimension. We find that the Weyl curvatu…
Lorentzian wormholes in an emergent universe
Rikpratik Sengupta, Shounak Ghosh, B C Paul +1
A non-singular Emergent Universe (EU) scenario within the realm of standard Relativistic physics requires a generalization of the Equation of State (EoS) connecting the pressure an…
Lorentzian wormholes supported by tachyon matter
Rikpratik Sengupta, Shounak Ghosh, Mehedi Kalam
Wormholes with Ellis geometry have been successfully constructed using tachyon matter \cite{Das}. However, for such a wormhole, it is obtained that the redshift function is necessa…
Gravastar under the framework of braneworld gravity II: effect of the Kuchowicz metric function
Saibal Ray, Shounak Ghosh, Rikpratik Sengupta
In recent years, a class of compact objects called gravastars have drawn immense interest as regular solutions to end state stellar collapse. Since the energy density involved in c…
Wormhole on the Brane with Ordinary Matter: The Broader View
Rikpratik Sengupta, Shounak Ghosh, Mehedi Kalam +1
In this paper we attempt to examine the possibility of construction of a traversable wormhole on the Randall-Sundrum braneworld with ordinary matter employing the Kuchowicz potenti…
Study of Gravastars in Rastall Gravity
Shounak Ghosh, Sagar Dey, Amit Das +2
Gravastars have been considered as a feasible alternative to black holes in the past couple of decades. Stable models of gravastar have been studied in many of the alternative grav…
Gravastar under the framework of Braneworld Gravity
Rikpratik Sengupta, Shounak Ghosh, Saibal Ray +2
Gravastars have been considered as a serious alternative to black holes in the past couple of decades. Stable models of gravastar have been constructed in many of the alternate gra…
Study of gravastars under gravity
Amit Das, Shounak Ghosh, Debabrata Deb +2
In the present paper we propose a stellar model under the gravity following the conjecture of Mazur-Mottola~[Report number: LA-UR-01-5067 (2001); Proc. Natl. Acad.…
Gravastars in gravity
Shounak Ghosh, A. D. Kanfon, Amit Das +3
We propose a stellar model under the gravity following Mazur-Mottola's conjecture [Mazur (2001), Mazur (2004)] known as gravastar which is generally bel…
Generalized Ghost Dark Energy in DGP Model
Mahasweta Biswas, Shounak Ghosh, Ujjal Debnath
In 2000, Giorgi Dvali, Gregory Gabadadze and Massimo Porrati (Dvali et al. 2000) was proposed a new braneworld model named as DGP model, having two branches with and $(ε=-…
Anisotropic compact stars in f(T) gravity under Karmarkar condition
Debabrata Deb, Shounak Ghosh, S. K. Maurya +2
In this study, we present a generalized spherically symmetric, anisotropic and static compact stellar model in gravity, where represents the torsion scalar. By employing…
Study of QCD generalized ghost dark energy in FRW universe
Mahasweta Biswas, Ujjal Debnath, Shounak Ghosh +1
A phenomenological generalized ghost dark energy model has been studied under the framework of FRW universe. In ghost dark energy model the energy density depends linearly on Hubbl…
Anisotropic strange stars with Tolman V potential
Dibyendu Shee, Debabrata Deb, Shounak Ghosh +2
In this paper we present a strange stellar model using Tolman type metric potential employing simplest form of the MIT bag equation of state (EOS) for the quark matter. We cons…
Strange stars in Krori-Barua space-time under f(R; T) gravity
Suparna Biswas, Shounak Ghosh, B. K. Guha +2
In the present work, we study about highly dense compact stars which are made of quarks, specially strange quarks, adopting the Krori-Barua (KB)~\cite{Krori1975} metric in the fram…
A generalized family of anisotropic compact object in general relativity
S. K. Maurya, Saibal Ray, Shounak Ghosh +2
We present model for anisotropic compact star under the general theory of relativity of Einstein. In the study a 4-dimensional spacetime has been considered which is embedded into…
On the features of Matese-Whitman mass function
Dibyendu Shee, Debabrata Deb, Shounak Ghosh +2
In the present paper we exhaustively examine the physical status of the socalled Matese-Whitman mass function [J.J. Matese and P.G. Whitman, Phys. Rev. D, 22, 1270 (1980)]. As a fi…
Gravastars in gravity
Amit Das, Shounak Ghosh, B. K. Guha +3
We propose a unique stellar model under the gravity by using the conjecture of Mazur-Mottola [P. Mazur and E. Mottola, Report number: LA-UR-01-5067., P. Mazur an…
Gravastars with higher dimensional spacetimes
Shounak Ghosh, Saibal Ray, Farook Rahaman +1
We present a new model of gravastar in the higher dimensional Einsteinian spacetime including Einstein's cosmological constant . Following Mazur and Mottola (2001,~2004) we obta…