Modeling of self-gravitating compact configurations using radial metric deformation approach

This study analyzes new analytical solution types that explore the influence of complexity on time-independent, spherically symmetric astrophysical configurations, based on a radial metric deformation scheme also known as minimal geometric deformation. We demonstrate that the complexity factor, a sc...

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Bibliographic Details
Published in:Chinese journal of physics (Taipei) 2024-06, Vol.89, p.1595-1610
Main Authors: Yousaf, Z., Khan, S., Turki, Nasser Bin, Suzuki, T.
Format: Article
Language:English
Subjects:
Compact objects
Complexity factor
Gravitational decoupling
Karmarkar condition
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Summary:This study analyzes new analytical solution types that explore the influence of complexity on time-independent, spherically symmetric astrophysical configurations, based on a radial metric deformation scheme also known as minimal geometric deformation. We demonstrate that the complexity factor, a scalar function obtained via splitting the Riemann tensor orthogonally, exhibits an additive property. This implies that the overall complexity of a system containing two interacting fluid distributions (represented by Tμν and Φμν) is simply the sum of the individual complexities of each fluid. This work employs the radial metric deformation approach, a powerful tool for constructing astrophysically viable models of anisotropic matter, by building upon the Vaidya–Tikekar and Finch–Skea relativistic spacetimes. We observe that both the metric ansatzes produce qualitatively similar features, though the magnitudes may vary slightly, for any non-zero value of the decoupling parameter (0≤α
ISSN:0577-9073
DOI:10.1016/j.cjph.2024.04.012