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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spelling	doaj-f128b24b7d174184b04244f9404b8a812020-11-25T03:27:02ZengOdessa 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
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	M. P. Korkina A. N. Turinov
spellingShingle	M. P. Korkina A. N. Turinov The Models of Voids in the Friedman Universe Odessa Astronomical Publications
author_facet	M. P. Korkina A. N. Turinov
author_sort	M. P. Korkina
title	The Models of Voids in the Friedman Universe
title_short	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_sort	models of voids in the friedman universe
publisher	Odessa I. I. Mechnykov National University
series	Odessa Astronomical Publications
issn	1810-4215
publishDate	2017-03-01
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.
url	http://oap.onu.edu.ua/article/view/93030
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The Models of Voids in the Friedman Universe

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