Complexity-free charged anisotropic Finch-Skea model satisfying Karmarkar condition

Khan, S; Yousaf, Z

doi:10.1088/1402-4896/ad38e2

Cited by 6 publications

(1 citation statement)

References 70 publications

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“…To tackle this issue, researchers have investigated diverse approaches to impose additional constraints that facilitate solving for these unknowns. For example (i) mimic constraints scheme [45,49] (ii) some anisotropy mechanism [50] (iii) zero complexity factor condition [51,52].…”

Section: Introductionmentioning

confidence: 99%

Role of complexity on the minimal deformation of black holes

Yousaf,

Bamba,

Almutairi

et al. 2024

Class. Quantum Grav.

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We investigate spherically symmetric classes of anisotropicsolutions within the realm of a schematic gravitational decoupling scheme, primarily decoupling through minimal geometricdeformation, applied to non-rotating, ultra-compact,self-gravitational fluid distributions. In this respect, we employthe minimal complexity factor schemeto generate physically realistic models foranisotropic matter distributions, using a well-behaved model. The zero-complexity factor condition enables us todetermine the deformation function for solving the decoupled system.We explore all the structure-defining scalar variables, such asdensity inhomogeneity, strong energycondition, density homogeneity, and the complexity factor (an alloy ofdensity inhomogeneity and pressure anisotropy) for the decouplingconstant ranging between $0$ and $1$. We observe that the anisotropy vanishes when the coupling constant is set to unity. This finding holds significance as it implies that, in the context of a zero-complexity factor approach, an anisotropic matter distribution becomes perfect without requiring any isotropy requirements. This work effectively explored the impact of complexity on the composition of self-gravitational stellar distributions. This effective approach enables the development of new, physically realistic isotropic stellar models for anisotropic matter distributions. Additionally, our findings indicate that the complexity factor in static, spherically symmetric self-gravitational objects can significantly affect the nature of the matter distribution within these systems. It is concluded that the minimally deformed Durgapal-IV model features an increasing pressure profile, and the local anisotropy of pressure vanishes throughout the model under complexity-free conditions.

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Section: Introductionmentioning

confidence: 99%

Role of complexity on the minimal deformation of black holes

Yousaf,

Bamba,

Almutairi

et al. 2024

Class. Quantum Grav.

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Anisotropic model of stellar objects in modified f(R) gravity

Kumar,

Maurya,

Errehymy

et al. 2024

Chinese Journal of Physics

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Structure of anisotropic fuzzy dark matter black holes

Khan,

Adeel,

Yousaf

2024

Eur. Phys. J. C

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Building on the Einasto dark matter (DM) density parameterizations, this study explores the possibility of constructing DM black holes (BHs) within the formalism of the Starobinsky gravity model. This approach extends the solutions characterizing the non-commutative mini BHs and introduces DM as the fundamental material constituting the BH. Assuming an anisotropic fluid configuration, we demonstrate the existence of different BH models subject to the values of the Einasto index $$\alpha $$ α and rescaled mass $$\xi $$ ξ . To achieve this, we begin by considering a de Sitter-like equation of state (EOS) wherein $$\varepsilon =-P_{r}$$ ε = - P r . Interestingly, the resulting BH solution not only shares a similar horizon structure with a Reissner-Nordström BH but also replaces the central singularity with a regular de Sitter core through the mechanism of quadratic $$f(\textrm{R})$$ f ( R ) corrections. We further explore the possibility of using a nonlocal EOS instead of the previous one. This alternative approach allows us to construct a fuzzy DM stellar droplet. However, the radial pressure $$P_{r}$$ P r remains negative in this case. More precisely, we explore the possibility of these findings informing the existence of moderately massive DM-BHs within the galactic structures. Such objects could have played a role in the early stages of galactic formation. Furthermore, we delve into the intriguing possibility of these moderately massive DM-BHs acting as the central objects within galaxies.

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Complexity-free charged anisotropic Finch-Skea model satisfying Karmarkar condition

Cited by 6 publications

References 70 publications

Role of complexity on the minimal deformation of black holes

Role of complexity on the minimal deformation of black holes

Anisotropic model of stellar objects in modified f(R) gravity

Structure of anisotropic fuzzy dark matter black holes

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