A Brief analysis of isotropic Karmarkar models in modified gravity theory

Feng, Yihu; Naseer, Tayyab; Ashraf, Asifa; Sofuoğlu, Değer; Abdullayeva, Iroda

doi:10.1016/j.cjph.2024.05.019

Cited by 11 publications

(2 citation statements)

References 75 publications

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“…Our spacetime geometry is initially filled with the isotropic fluid. The corresponding EMT with the energy density μ is represented by [46][47][48]…”

Section: F(r T) Gravitymentioning

confidence: 99%

“…The other parameters such as f and ψ are taken as same as considered for the earlier solutions. The deformation function (48) is shown in figure 9 that takes positive values everywhere. Figure 10 shows that the deformed g rr metric function (49) approaches 1 with the rise in r, obeying the criteria of asymptotically flatness as the time component also takes the same value at some r that is already observed from figure 1.…”

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confidence: 99%

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Analysis of some newly constructed compact models in f(R, T) theory

Feng,

Naseer,

Ashraf

et al. 2024

Phys. Scr.

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In this paper, black hole solutions are developed within the framework of f(R, T) gravity through the minimal gravitational decoupling approach. By introducing a new source in the original isotropic matter distribution, the corresponding ﬁeld equations acquire additional degrees of freedom. Applying the transformation on the radial metric function leads these equations to two distinct sets, each representing the inﬂuence of either the seed or additional source exclusively. In order to formulate the black hole solutions, the seed source is considered to be a vacuum, characterized by the Schwarzschild metric. To derive a viable solution for the second system, constraints are imposed on the metric potentials and energy-momentum tensor of the additional source. Three distinct solutions are graphically analyzed based on varying values of the decoupling parameter. The energy conditions are also plotted to determine the nature of the extra source. Finally, it is concluded that two of our developed models agree with the asymptotic ﬂatness criterion and energy bounds in this modiﬁed theory.

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“…Our spacetime geometry is initially filled with the isotropic fluid. The corresponding EMT with the energy density μ is represented by [46][47][48]…”

Section: F(r T) Gravitymentioning

confidence: 99%

mentioning

confidence: 99%