output
20102026
most citedNew Hyperon Equations of State for Supernovae and Neutron Stars in Density-dependent Hadron Field Theory

250 citations

Showing 2019 · gr-qcShow all

12 papers · 2 filters

gr-qc2019★ 9 cited

Dark Energy and Modified Scale Covariant Theory of Gravitation

Koijam Manihar Singh, Sanjay Mandal, Longjam Parbati Devi +1

Taking up four model universes we study the behaviour and contribution of dark energy to the accelerated expansion of the universe, in the modified scale covariant theory of gravit…

gr-qc2019★ 48 cited

Wormhole model with a hybrid shape function in f(R,T) gravity

Parbati Sahoo, Sanjay Mandal, P. K. Sahoo

In the present article we propose a new hybrid shape function for wormhole (WH)s in the modified gravity. The proposed shape function satisfied the conditions of WH geomet…

gr-qc2019

Microscopic Model building for Black Hole Membranes from Constraints of Symmetry

Swastik Bhattacharya, S. Shankaranarayanan

Einstein equations projected on black-hole horizons give rise to the equations of motion of a viscous fluid. This suggests a way to understand the microscopic degrees of freedom on…

gr-qc2019★ 121 cited

Observational constraint on interacting Tsallis holographic dark energy in logarithmic Brans-Dicke theory

Y Aditya, Sanjay Mandal, P. K. Sahoo +1

In this paper, we investigate the dark energy phenomenon by studying the Tsallis holographic dark energy within the framework of Brans-Dicke (BD) scalar-tensor theory of gravity [P…

gr-qc2019★ 24 cited

Accelerating models with a hybrid scale factor in extended gravity

B. Mishra, S. K. Tripathy, Sankarsan Tarai

Dynamical aspects of cosmological model in an extended gravity theory have been investigated in the present work. We have adopted a simplified approach to obtain cosmic features, w…

gr-qc2019★ 16 cited

Revisiting The Coincidence Problem in Gravitation

P. K. Sahoo, S. Bhattacharjee

The energy densities of dark matter (DM) and dark energy (DE) are of the same order at the present epoch despite the fact that both these quantities have contrasting characteristic…

gr-qc2019★ 18 cited

Constraining f(R,T) Gravity From The Dark Energy Density Parameter

Snehasish Bhattacharjee, P. K. Sahoo

gravity is a widely used extended theory of gravity introduced in \cite{9} which is a straightforward generalization of gravity. The action in this extended theory…

gr-qc2019★ 55 cited

Bouncing scenario in gravity

Parbati Sahoo, S. Bhattacharjee, S. K. Tripathy +1

The present manuscript presents modeling of matter bounce in the framework of gravity where . We start by defining a parametrization of scale factor whi…

gr-qc2019★ 29 cited

Phantom fluid wormhole in gravity

Parbati Sahoo, Annika Kirschner, P. K. Sahoo

Wormholes (WHs) are considered as hypothetical shortcuts or tunnels in spacetime. In general relativity (GR), the fundamental ingredient of WH geometry is the presence of exotic ma…

gr-qc2019★ 18 cited

Viability of the cosmology

P. H. R. S. Moraes, P. K. Sahoo, S. K. J. Pacif

We propose a new theoretical approach for a cosmological model, which starts from an exponential of the trace of the energy-momentum tensor-dependence on the gravitational action,…

gr-qc2019★ 39 cited

Phantom cosmology in an Extended Theory of Gravity

S. K. Tripathy, B. Mishra

Some phantom cosmological models without big rip singularity have been constructed in a simple extended theory of gravity. In the geometrical part of the action, a minimally couple…

gr-qc2019★ 99 cited

Wormholes in exponential gravity

P. H. R. S. Moraes, P. K. Sahoo

Alternative gravity is nowadays an extremely important tool to address some persistent observational issues, such as the dark sector of the universe. They can also be applied to st…