Universal Relations for Non-Rotating Objects Made of Dark Energy

We obtain universal relations for fluid spheres without rotation made of dark energy assuming the extended Chaplygin gas equation-of-state. After integrating the relevant differential equations, we make a fit to obtain the unknown coefficients of the functions (a) normalized moment of inertia versus dimensionless deformability and (b) normalized moment of inertia versus factor of compactness. We find that the form of the functions does not depend on the details of the underlying equation-of-state.

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Publication Details

Journal
Galaxies
Published
2025-02-13
DOI
https://doi.org/10.3390/galaxies13010013
Citations
2
Primary Topic
Cosmology and Gravitation Theories
Type
article
Field-Weighted Citation Impact
2.31
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article

Universal Relations for Non-Rotating Objects Made of Dark Energy

Grigorios Panotopoulos
2 citations
Galaxies
Cosmology and Gravitation Theories
2.31
article

Universal Relations for Non-Rotating Objects Made of Dark Energy

Grigorios Panotopoulos
article en
2 citations

Abstract

We obtain universal relations for fluid spheres without rotation made of dark energy assuming the extended Chaplygin gas equation-of-state. After integrating the relevant differential equations, we make a fit to obtain the unknown coefficients of the functions (a) normalized moment of inertia versus dimensionless deformability and (b) normalized moment of inertia versus factor of compactness. We find that the form of the functions does not depend on the details of the underlying equation-of-state.

GalaxiesVol. 13(1)
Universidad de La Frontera (CL)
Openalex Percentile: Top 13%
Cosmology and Gravitation Theories
2.31
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