Quintessence compact star models under embedded class one symmetry

Tamta, Pramesh; Fuloria, Pratibha

doi:10.1016/j.newast.2021.101671

Cited by 3 publications

(1 citation statement)

References 47 publications

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“…We choose the spherically symmetric components calculated by the Karmarker condition for this specific purpose. Some quintessence stars in GR have been discussed in literature [75,76], but in this study, we use the cloud of strings parameter along with the quintessence field. Moreover, our results in the case of quintessence and the cloud of strings field are less dense than the simple quintessence field.…”

Section: Discussionmentioning

confidence: 99%

Imprints of cloud of strings and quintessence field on compact stellar configurations

Ditta,

Asia,

Mustafa

et al. 2024

Phys. Scr.

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In this paper, we look into how stellar configurations with quintessence and a cloud of string fields behave in general relativity in spherical symmetric spacetime. The goal is to find a stable stellar model. We compute the unknown constants in the metric using the masses and radii of $PSRJ1614 - 2230$ stars. We employ the effective energy-momentum tensor in general relativity for the analysis of field equations. Additionally, we also demonstrate the anisotropic behavior, energy conditions, energy density, quintessence density, pressure profiles, gradients, anisotropic factor, energy conditions, sound speeds, TOV forces, compactification, mass function, EoS components, redshift, and stability of the compact stars. We demonstrate that according to the theory of general relativity, these compact stars exhibit physically plausible structures in the quintessence field with clouds of string.

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Section: Discussionmentioning

confidence: 99%

Imprints of cloud of strings and quintessence field on compact stellar configurations

Ditta,

Asia,

Mustafa

et al. 2024

Phys. Scr.

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Anisotropic stellar modeling with clouds of string and quintessence field in Rastall gravity

Ditta,

Tiecheng,

Mahmood

et al. 2023

Int. J. Mod. Phys. A

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This paper proposes a new framework to investigate the spherically symmetric of anisotropic stars with clouds of strings and quintessence field in Rastall gravity. We develop the field equations in a spherically symmetric space–time with a quintessence field and clouds of string. We utilize the mass and radius of Her X-1, Vela X-1, SMC X-1, SAX J1808 0.4-3658 and 4 U 1538-52, which are well mentioned in the literature. We applied the matching conditions by considering outer space calculated in Rastall gravity to evaluate the constants parameters. To check the stability and physical presence of compact models, we computed the most important features of quintessence stars in the presence of a cloud of strings. We explored characteristics including energy density, quintessence density, radial pressure, tangential pressure gradients, anisotropic factor, energy conditions, sound speeds, TOV forces, EoS components, mass function, compactification and redshift.

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A quintessence type interior solution with Karmarkar condition

Munoz

Vazquez

Vazquez-Nambo³

et al. 2023

Int. J. Geom. Methods Mod. Phys.

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In this report, we present an interior solution to Einstein’s equations in a spherically symmetric and static spacetime filled by two sources with anisotropic pressures, one of these of ordinary matter for which the radial pressure is described by the MIT Bag state equation associated to the presence of quarks and the other by non-ordinary quintessence type matter. The solution is obtained from imposing the Karmarkar condition considering a metric function [Formula: see text] resulting in a physically acceptable, stable and adequate model to represent compact objects with compactness rate [Formula: see text]. Which allows to take different value of mass and radius in the range of the observational data of mass [Formula: see text] and radius [Formula: see text] of the star 4U1608-52 with compactness [Formula: see text], from these data we determine the range of [Formula: see text].

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Quintessence compact star models under embedded class one symmetry

Cited by 3 publications

References 47 publications

Imprints of cloud of strings and quintessence field on compact stellar configurations

Imprints of cloud of strings and quintessence field on compact stellar configurations

Anisotropic stellar modeling with clouds of string and quintessence field in Rastall gravity

A quintessence type interior solution with Karmarkar condition

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