31 citations · 239 across the 21 of their papers we have counts for
21 papers
Exploring Cosmological Implications of the Modified Raychaudhuri Equation in Non-Gravitating Vacuum Energy Theory
Arijit Panda, Eduardo Guendelman, Goutam Manna
This article investigates the modified Raychaudhuri Equation (RE) in the context of Non-Gravitating Vacuum Energy (NGVE) theory and its implications for various cosmological charac…
Thermodynamics of a Non-canonical gravity
Arijit Panda, Goutam Manna, Saibal Ray +2
This work comprises a study of the thermodynamic behavior of modified gravity, which had been developed based on a non-canonical theory known as K-essence theo…
Form Invariance of Raychaudhuri equation in the presence of Inflaton-type fields
Arijit Panda, Debashis Gangopadhyay, Goutam Manna
We show that the Raychaudhuri equation remains form invariant for certain solutions of scalar fields whose Lagrangian is non-canonical and of the form $\mathcal{L}(X,ϕ)=-V(ϕ)F(…
Null geodesic structure for the Barriola-Vilenkin spacetime via -essence
Bivash Majumder, Saibal Ray, Goutam Manna
Based on the work of Chandrasekhar [{\it The Mathematical Theory of Black Holes, Oxford Univ. Press (1992)}], we investigate the null geodesic structure of the emergent Barriola-Vi…
Geodesic structure of generalized Vaidya spacetime through the K-essence
Bivash Majumder, Maxim Khlopov, Saibal Ray +1
This article investigates on the radial and non-radial geodesic structures of the generalized K-essence Vaidya spacetime. Within the framework of K-essence geometry, it is importan…
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…
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…
Cosmological effects on gravity through a non-standard theory
Arijit Panda, Saibal Ray, Goutam Manna +2
This study aims to investigate the impact of dark energy in cosmological scenarios by exploiting gravity within the framework of a {\it non-standard} theory, c…
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…
-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…
Time-like geodesic structure for the K-essence Emergent Barriola-Vilenkin type spacetime
Bivash Majumder, Goutam Manna, Ashoke Das
For a particular type of {\bf k-}essence scalar field, the {\bf k-}essence emergent gravity metric is exactly mapped on to the Barriola-Vilenkin (BV) type metric for Schwarzschild…
Gravitational Collapse for the K-essence Emergent Vaidya Spacetime
Goutam Manna
In this paper, we study the gravitational collapse in the {\bf k-}essence emergent gravity using a generalized Vaidya-type metric as a background. We also analyze the cosmic censor…
Thermodynamics for the k-essence Emergent Reissner-Nordstrom-de Sitter Spacetime
Goutam Manna, Bivash Majumder, Ashoke Das
The {\bf k-}essence emergent Reissner-Nordstrom-de Sitter spacetime has exactly mapped on to the Robinson-Trautman (RT) type spacetime with cosmological constant for certain co…
K-essence Emergent Spacetime as Generalized Vaidya Geometry
Goutam Manna, Parthasarathi Majumdar, Bivash Majumder
We establish a formal connection between the {\bf K}-essence emergent gravity scenario and generalizations of Vaidya spacetime. Choosing the {\bf K}-essence action to be of the Dir…
The Hawking temperature in the context of dark energy for Kerr-Newman and Kerr-Newman-AdS backgrounds
Goutam Manna, Bivash Majumder
We show that the Hawking temperature is modified in the presence of dark energy in an emergent gravity scenario for Kerr-Newman(KN) and Kerr-Newman-AdS(KNAdS) background metrics. T…
Cosmology in presence of dark energy in an emergent gravity scenario
Debashis Gangopadhyay, Goutam Manna
We obtain the analogues of the Friedman equations in an emergent gravity scenario in the presence of dark energy. The background metric is taken to be Friedman-Lemaitre-Robertson-W…
The Hawking Temperature in the context of Dark Energy for Reissner-Nordstrom and Kerr background
Goutam Manna, Debashis Gangopadhyay
For emergent gravity metrics, presence of dark energy modifies the Hawking temperature. We show that for the spherically symmetric Reissner-Nordstrom (RN) background metric, the em…
The Hawking temperature in the context of dark energy
Debashis Gangopadhyay, Goutam Manna
An emergent gravity metric incorporating essence scalar fields having a Born-Infeld type lagrangian is mapped into a metric whose structure is similar to that of a blackhol…
Masking singularities with essence fields in an emergent gravity metric
Debashis Gangopadhyay, Goutam Manna, Sourav Sen Choudhury
It is known that dynamical solutions of the -essence equation of motion change the metric for the perturbations around these solutions and the perturbations propagate in an emer…
Hawking temperature for a global monopole metric in the context of k- essence and emergent gravity
Debashis Gangopadhyay, Goutam Manna
The Hawking temperature for the Barriola-Vilenkin global monopole metric is shown to be , where is the global monopol…