Cosmic voids and the kinetic analysis

The formation of cosmic structures in the late Universe was considered using the Vlasov kinetic approach. The crucial point is the use of the gravitational potential with repulsive term of the cosmological constant, which provides a solution to the Hubble tension, that is, the Hubble parameter for the late Universe has to differ from its global cosmological value. This also provides a mechanism of formation of stationary semi-periodic gravitating structures of voids and walls, so that the cosmological constant has the role of the scaling. It can therefore be compared with the observational data for given regions. The considered mechanism of the structure formation in the late cosmological epoch then succeeds the epoch described by the evolution of primordial density fluctuations.

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Publication Details

Journal
Astronomy and Astrophysics
Published
2025-01-22
DOI
https://doi.org/10.1051/0004-6361/202553679
Citations
6
Primary Topic
Relativity and Gravitational Theory
Type
article
Field-Weighted Citation Impact
6.93

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article

Cosmic voids and the kinetic analysis

Н. Н. Фимин, В. М. Чечеткин, V. G. Gurzadyan
6 citations
Astronomy and Astrophysics
Relativity and Gravitational Theory
6.93
article

Cosmic voids and the kinetic analysis

Н. Н. Фимин, В. М. Чечеткин, V. G. Gurzadyan
article en
6 citations

Abstract

The formation of cosmic structures in the late Universe was considered using the Vlasov kinetic approach. The crucial point is the use of the gravitational potential with repulsive term of the cosmological constant, which provides a solution to the Hubble tension, that is, the Hubble parameter for the late Universe has to differ from its global cosmological value. This also provides a mechanism of formation of stationary semi-periodic gravitating structures of voids and walls, so that the cosmological constant has the role of the scaling. It can therefore be compared with the observational data for given regions. The considered mechanism of the structure formation in the late cosmological epoch then succeeds the epoch described by the evolution of primordial density fluctuations.

Astronomy and AstrophysicsVol. 694
A. Alikhanyan National Laboratory (AM), Institute for Computer Aided Design (RU), Sapienza University of Rome (IT), Keldysh Institute of Applied Mathematics (RU)
Russian Science Foundation
Openalex Percentile: Top 4%
Relativity and Gravitational Theory
6.93
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