The Models of Voids in the Friedman Universe

The astronomical observations of the last years show that there are the regions in the Universe with much lower density of matter, than their surroundings. Theoretical studies of the regions (voids) in the model of the expanding Universe are carried on different directions. In this paper the voids h...

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Main Authors: M. P. Korkina, A. N. Turinov
Format: Article
Language:English
Published: Odessa I. I. Mechnykov National University 2017-03-01
Series:Odessa Astronomical Publications
Online Access:http://oap.onu.edu.ua/article/view/93030
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author M. P. Korkina
A. N. Turinov
author_facet M. P. Korkina
A. N. Turinov
author_sort M. P. Korkina
collection DOAJ
description The astronomical observations of the last years show that there are the regions in the Universe with much lower density of matter, than their surroundings. Theoretical studies of the regions (voids) in the model of the expanding Universe are carried on different directions. In this paper the voids have been built by means of matching Tolman and Friedman solutions. The Lichnerovich-Darmois matching conditions are used. It is shown that in expanding Universe with at space the voids can not exist. So we have Friedman Universe with voids, with described by the Tolman solution. The models of voids in the Friedman Universe with negative spatial curvature have been built.
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spelling doaj.art-f128b24b7d174184b04244f9404b8a812022-12-22T02:36:38ZengOdessa I. I. Mechnykov National UniversityOdessa Astronomical Publications1810-42152017-03-01120606210.18524/1810-4215.1999.12.9303093030The Models of Voids in the Friedman UniverseM. P. Korkina0A. N. TurinovDepartment of Theoretical Physics, Dnepropetrovsk State University, Nauchniy lane, Dnepropetrovsk 49005 UkraineThe astronomical observations of the last years show that there are the regions in the Universe with much lower density of matter, than their surroundings. Theoretical studies of the regions (voids) in the model of the expanding Universe are carried on different directions. In this paper the voids have been built by means of matching Tolman and Friedman solutions. The Lichnerovich-Darmois matching conditions are used. It is shown that in expanding Universe with at space the voids can not exist. So we have Friedman Universe with voids, with described by the Tolman solution. The models of voids in the Friedman Universe with negative spatial curvature have been built.http://oap.onu.edu.ua/article/view/93030
spellingShingle M. P. Korkina
A. N. Turinov
The Models of Voids in the Friedman Universe
Odessa Astronomical Publications
title The Models of Voids in the Friedman Universe
title_full The Models of Voids in the Friedman Universe
title_fullStr The Models of Voids in the Friedman Universe
title_full_unstemmed The Models of Voids in the Friedman Universe
title_short The Models of Voids in the Friedman Universe
title_sort models of voids in the friedman universe
url http://oap.onu.edu.ua/article/view/93030
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