Dynamical system analysis of logotropic dark fluid with a power law in the rest-mass energy density

Mandal, Goutam; Biswas, Sujay Kr.; Saha, Subhajit; Mamon, Abdulla Al

doi:10.1016/j.dark.2022.100970

Cited by 6 publications

(2 citation statements)

References 46 publications

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“…There are lots of work on compact objects in the background of f (Q) gravity. Mandal et al [23] studied the anisotropic compact stars in f (Q) gravity with the quintessence field. In the work [24], researchers have examined the physical behavior of strange stars using the MIT Bag EoS accepting Buchdahl metric for both linear and non-linear models.…”

Section: The Presence Of Event Horizonmentioning

confidence: 99%

Gravastar in the Framework of Symmetric Teleparallel Gravity

Pradhan,

Mandal,

Sahoo

2023

Preprint

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In the current research, we present a novel gravastar model based on the Mazur-Mottola (2004) method with an isotropic matter distribution in f (Q) gravity. The gravastar, a hypothesized substitute for a black hole, is built using the Mazur-Mottola mechanism. This approach allows us to define gravastar as having three stages. The first one is an inner region with negative pressure; the next region is a thin shell that is made up of ultrarelativistic stiff fluid, we have studied proper length, energy, entropy, and surface energy density for this region. Apart from that, we have demonstrated the possible stability of our suggested thin shell gravastar model through the graphical study of surface redshift. Exterior Schwarzschild geometry describes the outer region of the gravastar. In the context of f (Q) gravity, we have discovered analytical solutions for the interior of gravastars that are free of any kind of singularity and the event horizon.

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Section: The Presence Of Event Horizonmentioning

confidence: 99%

Gravastar in the Framework of Symmetric Teleparallel Gravity

Pradhan,

Mandal,

Sahoo

2023

Preprint

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“…The attractive insights of alternative gravitational theories have attained much attention in the fields of astrophysics and modern cosmology. Some well-known modified theories of gravity include f (R) [28,29], Brans-Dicke [30], f (Q) [31,32] and f (R, T) gravity [33], etc.…”

Section: Introductionmentioning

confidence: 99%

Anisotropic stellar evolution and exotic matter

Mumtaz,

Manzoor,

Zulfiqar

et al. 2024

Phys. Scr.

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In this paper, we discuss the stability of isotropic pressureconditions for a spherically symmetric dissipative fluiddistribution in the framework of$\mathfrak{f}(\mathcal{G},\mathrm{T})$ gravity. We consider thefluid to be composed of seen and exotic matter particles. The GaussBonnect terms represent exotic matter particles. For the physicalsignificance of the pressure isotropy conditions, we transform thesystem into the hydrostatic equilibrium approximation. We observethe presence of shear, dissipative fluxes, energy densityinhomogeneities, and prominently, the exotic matter tends to abandonisotropy leading to pressure anisotropy. It is found that exoticmatter and dissipation are major factors that induce matteranisotropy in the evolving stellar system. To strengthen theresults, we also incorporate some arguments by choosing an axiallysymmetric case.

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A comprehensive study of massive compact star admitting conformal motion under bardeen geometry

Pradhan,

Sahoo

2024

Nuclear Physics B

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Dynamical system analysis of logotropic dark fluid with a power law in the rest-mass energy density

Cited by 6 publications

References 46 publications

Gravastar in the Framework of Symmetric Teleparallel Gravity

Gravastar in the Framework of Symmetric Teleparallel Gravity

Anisotropic stellar evolution and exotic matter

A comprehensive study of massive compact star admitting conformal motion under bardeen geometry

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