Sudan Hansraj
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View article: Tidal deformability of strange stars with Buchdahl potential and anisotropic stresses under the influence of higher curvature and higher dimensional effects
Tidal deformability of strange stars with Buchdahl potential and anisotropic stresses under the influence of higher curvature and higher dimensional effects Open
View article: Einstein-Gauss-Bonnet black holes seeded by cosmic voids
Einstein-Gauss-Bonnet black holes seeded by cosmic voids Open
Cosmic voids—the immense, sparsely populated regions that lie between galaxies—emerge as key players in the life cycle of black holes. In this work, we investigate their influence within the framework of four-dimensional Einstein-Gauss-Bon…
View article: Charged isotropic solutions with linear barotropic equations of state in Einstein–Gauss–Bonnet gravity
Charged isotropic solutions with linear barotropic equations of state in Einstein–Gauss–Bonnet gravity Open
In the present work we investigate new class of charged isotropic solutions with a linear barotropic equation of state (EoS) in the framework of Einstein–Gauss–Bonnet (EGB) gravity for 5 and 6 dimensional spherically symmetric static distr…
View article: Analysis of the Isothermal Property in Isotropic 4d Einstein-Maxwell-Gauss-Bonnet Stellar Distributions
Analysis of the Isothermal Property in Isotropic 4d Einstein-Maxwell-Gauss-Bonnet Stellar Distributions Open
View article: Spherically symmetric perfect fluid filled universe within the 4 dimensional Einstein–Gauss–Bonnet gravity formalism with vanishing conformal curvature
Spherically symmetric perfect fluid filled universe within the 4 dimensional Einstein–Gauss–Bonnet gravity formalism with vanishing conformal curvature Open
View article: Barotropic equations of state in 4D Einstein-Maxwell-Gauss-Bonnet stellar distributions
Barotropic equations of state in 4D Einstein-Maxwell-Gauss-Bonnet stellar distributions Open
We investigate the role of a linear barotropic equation of state (p=γρ) on the structure of charged stars under higher curvature effects induced by the Gauss-Bonnet invariants in 4 dimensions. Assuming a constant spatially directed potenti…
View article: New classes of charged 4D EGB spacetimes with vanishing Weyl curvature
New classes of charged 4D EGB spacetimes with vanishing Weyl curvature Open
The configuration of a perfect fluid distribution in an electric field under the influence of higher curvature geometric effects introduced through the Gauss–Bonnet invariants is studied in the 4 dimensional Glavan–Lin gravity formulation.…
View article: Modeling Compact Object Mergers GW190814 and GW200210 and Other Self-bound Compact Stars with Dark Matter Induced by Gravitational Decoupling and Its Significance to the Mass Gap
Modeling Compact Object Mergers GW190814 and GW200210 and Other Self-bound Compact Stars with Dark Matter Induced by Gravitational Decoupling and Its Significance to the Mass Gap Open
We present a rigorous study of compact objects within f ( Q ) gravity where electrical fields and dark matter are studied and provide novel mass–radius relations with models falling in the mass gap of the events GW190814 and GW200210. Afte…
View article: Compact anisotropic stellar distribution with linear barotropic equation of state in energy–momentum trace coupling modification of general relativity
Compact anisotropic stellar distribution with linear barotropic equation of state in energy–momentum trace coupling modification of general relativity Open
There are no known exact isotropic or anisotropic stellar models with an equation of state in energy–momentum trace-coupling (EMTC) modifications of general relativity — the simplest linear case of f(R,T) gravity. The difficulty lies in th…
View article: Possible existence of Rastall–Rainbow wormholes in dark matter galactic halos
Possible existence of Rastall–Rainbow wormholes in dark matter galactic halos Open
The Rastall–Rainbow gravity theory has recently been proposed as a combination of the Rastall and rainbow theories. This theory can be thought as a generalization of the Rastall gravity to an energy dependent Rastall theory, and leads to a…
View article: Is dark energy necessary for the sustainability of traversable wormholes?
Is dark energy necessary for the sustainability of traversable wormholes? Open
In the standard approach to studying wormhole geometry, the presence of dark energy is unavoidable to ensure traversability. The dark energy provides the negative gravity effect to keep the throat open. The question we analyse is whether t…
View article: Generating exact polytropes in non-conservative unimodular geometries
Generating exact polytropes in non-conservative unimodular geometries Open
The trace-free Einstein equations contain one equation less than the complete\nfield equations. In a static and spherically symmetric spacetime, the number of\nfield equations is thus reduced to two. The equation of pressure isotropy of\ng…
View article: Online Teaching of University Mathematics: A Community of Practice Perspective
Online Teaching of University Mathematics: A Community of Practice Perspective Open
View article: Embedding Class One Galactic Halo Wormhole Geometries within Torsion and Matter Coupling Gravity Formalism
Embedding Class One Galactic Halo Wormhole Geometries within Torsion and Matter Coupling Gravity Formalism Open
View article: De Sitter Potential in Six Dimensional Einstein-Gauss-Bonnetisotropic Fluids
De Sitter Potential in Six Dimensional Einstein-Gauss-Bonnetisotropic Fluids Open
View article: Generating Exact Polytropes in Non-Conservative Unimodular Geometries
Generating Exact Polytropes in Non-Conservative Unimodular Geometries Open
View article: Weyl Free Cosmological Fluids in 4d Einstein-Gauss-Bonnet Gravity
Weyl Free Cosmological Fluids in 4d Einstein-Gauss-Bonnet Gravity Open
View article: Wormholes Inf(R,T) Gravity with Casimir Stress Energy
Wormholes Inf(R,T) Gravity with Casimir Stress Energy Open
View article: A simple protocol for anisotropic generalization of Finch–Skea model by gravitational decoupling satisfying vanishing complexity factor condition
A simple protocol for anisotropic generalization of Finch–Skea model by gravitational decoupling satisfying vanishing complexity factor condition Open
A physically reasonable anisotropic stellar model is constructed with the help of the gravitational decoupling via complete geometric deformation (CGD) technique under the condition of vanishing complexity factor [Contreras and Stuchlik in…
View article: The criteria of the anisotropic quark star models in Rastall gravity
The criteria of the anisotropic quark star models in Rastall gravity Open
Quark stars are terrestrial laboratories to study fundamental physics at ultrahigh densities and temperatures. In this work, we investigate the internal structure and the physical properties of quark stars (QSs) in the Rastall gravity. Ras…
View article: Physical Implications of Pure Lovelock Geometry on Stellar Structure
Physical Implications of Pure Lovelock Geometry on Stellar Structure Open
An exact anisotropic star model with a linear barotropic equation of state and with Finch‐Skea potential is constructed within the framework of pure Lovelock gravity. A comparison with the corresponding Einstein model in a suitable limit i…
View article: Charged dust in higher curvature geometry
Charged dust in higher curvature geometry Open
We analyze the configuration of charged dust in the context of the higher dimensional and higher curvature Einstein–Gauss–Bonnet–Maxwell theory. With the prescription of dust, there remains one more prescription to be made in order to clos…
View article: Strange stars in the framework of higher curvature gravity
Strange stars in the framework of higher curvature gravity Open
We study the influence of higher curvature effects on stellar structure and conclude that the properties of stars are greatly impacted when such terms are dynamic. In particular the surface gravitational redshift which is connected to the …
View article: Gravitationally Decoupled Strange Star Model beyond the Standard Maximum Mass Limit in Einstein–Gauss–Bonnet Gravity
Gravitationally Decoupled Strange Star Model beyond the Standard Maximum Mass Limit in Einstein–Gauss–Bonnet Gravity Open
The recent theoretical advance known as the minimal geometric deformation (MGD) method has initiated renewed interest in investigating higher-curvature gravitational effects in relativistic astrophysics. In this work, we model a strange st…
View article: The Criteria of the Anisotropic Quark Star Models in Rastall Gravity
The Criteria of the Anisotropic Quark Star Models in Rastall Gravity Open
View article: New Exact Models of Ideal Gas in 5d Egb Using Curvature Coordinates
New Exact Models of Ideal Gas in 5d Egb Using Curvature Coordinates Open
View article: Strange Quark Star Models from Rastall Gravity
Strange Quark Star Models from Rastall Gravity Open
View article: New solution generating algorithm for isotropic static Einstein-Gauss-Bonnet metrics
New solution generating algorithm for isotropic static Einstein-Gauss-Bonnet metrics Open
View article: Charged stars in 4D Einstein–Gauss–Bonnet gravity
Charged stars in 4D Einstein–Gauss–Bonnet gravity Open
View article: All conformally flat Einstein–Gauss–Bonnet static metrics
All conformally flat Einstein–Gauss–Bonnet static metrics Open
It is known that the standard Schwarzschild interior metric is conformally flat and generates a constant density sphere in any spacetime dimension in Einstein and Einstein–Gauss–Bonnet (EGB) gravity. This motivates the questions: in EGB do…