Causes of energy density inhomogenisation with f(G) formalism

Here, we analyse the distribution of self-gravitating collapsing fluid to identify the factors accountable for the energy–density inhomogeneity with the systematic construction in modified Gauss–Bonnet (GB) gravity, by taking the space–time which is spherically symmetric. The modified Einstein’s equ...

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Bibliographic Details
Published in:Pramāṇa 2023-01, Vol.97 (1)
Main Authors: Yousaf, Z, Bhatti, M Z, Farhat, A
Format: Article
Language:English
Subjects:
Astronomy
Astrophysics and Astroparticles
Observations and Techniques
Physics
Physics and Astronomy
Online Access:Get full text
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Summary:Here, we analyse the distribution of self-gravitating collapsing fluid to identify the factors accountable for the energy–density inhomogeneity with the systematic construction in modified Gauss–Bonnet (GB) gravity, by taking the space–time which is spherically symmetric. The modified Einstein’s equations help us to observe the variation in the mass function due to different quantities. The dynamical equations and two differential equations for Weyl curvature are formulated, and used to explore the quantities responsible for the inhomogeneity. Irregularity in the fluid is analysed by taking various cases of fluid, under the effects of f ( G ) theory, where G is a Gauss–Bonnet term.
ISSN:0973-7111
DOI:10.1007/s12043-022-02501-0