268 citations · 6.5k across the 138 of their papers we have counts for
97 papers · 1 filter
Finslerian extension of an anisotropic strange star in the domain of modified gravity
Sourav Roy Chowdhury, Debabrata Deb, Farook Rahaman +1
In this article, we apply the Finsler spacetime to develop the Einstein field equations in the extension of modified geometry. Following Finsler geometry, which is focused on the t…
Gravitationally decoupled Non-Schwarzschild black holes and wormhole space-times
Francisco Tello-Ortiz, Ángel Rincón, A. Alvarez +1
In this article, using gravitational decoupling by means of minimal geometric deformation approach, we obtain a new spherically symmetric and static black hole solution. To progres…
Casimir wormhole with GUP correction in extended symmetric teleparallel gravity
Abhilipsa Sahoo, S. K. Tripathy, B. Mishra +1
Quantum mechanical concept such as the Casimir effect is explored to model traversable wormholes in an extended teleparallel gravity theory. The minimal length concept leading to t…
Reconstruction of gravity model via the Raychaudhuri equation
Arijit Panda, Surajit Das, Goutam Manna +1
In this work, we investigate for an analytical solution under modified gravity theory, specifically the gravity for two different eras, i.e., matter and dark energy domina…
Raychaudhuri equation in -essence geometry: conditional singular and non-singular cosmological models
Surajit Das, Arijit Panda, Goutam Manna +1
We investigate how the Raychaudhuri equation behaves in the -essence geometry. As far as we are concerned, both the early and current epochs of the universe are relevant to the…
Possibility of stable thin-shell around wormholes within the string cloud and quintessential field via the van der Waals and polytropic EOS in General relativity
G. Mustafa, Faisal Javed, S. K. Maurya +1
In this work, we present the Einstein field equations (EFE) in the framework of a modified matter source and thus find out the solutions for the Wormhole. To obtain characteristic…
Weyl transformation: a dynamical degree of freedom in the light of Dirac's Large Number Hypothesis
Prasenjit Paul, Rikpratik Sengupta, Saibal Ray
In Einstein's Field Equation(EFE) the geometry of the space-time is connected with the matter distribution. The geometry or the gravitational sector deals with classical macroscopi…
Collapsing scenario for the k-essence emergent generalised Vaidya spacetime in the context of massive gravity's rainbow
Saibal Ray, Arijit Panda, Bivash Majumder +2
In this paper, we study the collapsing scenario for the k-essence emergent Vaidya spacetime in the context of massive gravity's rainbow. For this study, we consider that the backgr…
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…
Anisotropic stars in modified gravity: An extended gravitational decoupling approach
S. K. Maurya, B. Mishra, Saibal Ray +1
In the work, we present investigation on decoupling gravitational sources under the framework of gravity. Basically the complete geometric deformation technique has been e…
Anisotropic compact star with a linear pressure-density relationship
Shyam Das, Bikram Keshari Parida, Koushik Chakraborty +1
We present a model of compact astrophysical object under General Theory of Relativity using the anisotropic extension of Tolman IV solution. The anisotropy function, derived from t…
Traversable wormhole models in gravity
B. Mishra, A. S. Agrawal, S. K. Tripathy +1
In this work, we analyze the wormhole solutions in gravity. Specifically we sought for wormhole geometry solutions for the following three shape functions: (i) $b(r)=r_{0}+ρ…
Compact stellar models in modified gravity
Ines G. Salako, Chayan Ranjit, M. Khlopov +2
In the present investigation compact stellar models are dealt with in the framework of the modified gravity theory, specifically of type. We have consid…
Cosmological models with a Hybrid Scale Factor
S. K. Tripathy, B. Mishra, Maxim Khlopov +1
In this brief review, we present some cosmological models with a Hybrid Scale Factor (HSF) in the framework of general relativity (GR). The hybrid scale factor fosters an early dec…
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…
Quark matter supported wormhole in third order Lovelock gravity
Koushik Chakraborty, Abdul Aziz, Farook Rahaman +1
It is generally believed that wormholes are supported by exotic matter violating Null Energy Condition (NEC). However, various studies of wormhole geometries under Lovelock theorie…
Anisotropic compact stars: Constraining model parameters to account for physical features of tidal Love numbers
Shyam Das, Saibal Ray, Maxim Khlopov +2
In this paper, we develop a new class of models for a compact star with anisotropic stresses inside the matter distribution. By assuming a linear equation of state for the anisotro…
A study on the effect of anisotropy under Finch-Skea geometry
Shyam Das, Koushik Chakraborty, Lipi Baskey +1
The popularity of the Finch-Skea ansatz to describe relativistic stellar model have encouraged us to study the analytic solutions of the Einstein field equation. We have presented…
Cosmological models with squared trace in modified gravity
B. Mishra, S. K. Tripathy, Saibal Ray
In this work we present a few simple cosmological models under the modified theory of gravity in the particular form of , where is the Ricci…
Evaporation of dynamical horizon with the Hawking temparature in the {\bf K-}essence emergent Vaidya spacetime
Bivash Majumder, Saibal Ray, Goutam Manna
In the {\bf K-}essence Vaidya Schwarzschild spacetime, we apply the dynamical horizon equation to measure the mass-loss due to Hawking radiation and the tunneling formalism (Hamilt…
Anisotropic strange star with Tolman-Kuchowicz metric under gravity
Suparna Biswas, Dibyendu Shee, B. K. Guha +1
In the current article, we study anisotropic spherically symmetric strange star under the background of gravity using the metric potentials of Tolman-Kuchowicz type~\cite{…
Modified Power law Inflation: solution to the graceful exit problem and improvement of dark energy models
Prasenjit Paul, Rikpratik Sengupta, Saibal Ray
We study power law inflation (PLI) with a monomial potential and find a novel exact solution. It is well known that conventional PLI with exponential potential is inconsistent with…
Charged strange stellar model with Tolman metric potential in the Einstein-Maxwell space-time
Saibal Ray, Dibyendu Shee, Debabrata Deb +2
This paper deals with the existence of a compact stellar object, precisely strange (quark) star, in the framework of Einstein's General Theory of Relativity with Tolman metric…
-gravity in the context of dark energy with power law expansion and energy conditions
Goutam Manna, Arijit Panda, Aninda Karmakar +2
The motto of this work is to generate a general formalism of gravity in the context of dark energy under the framework of the {\bf K-}essence emergent geometry w…