Космологiчнi моделi Фрiдмана з рiзними рiвняннями стану матерiї
The Friedmann models of the universe filled with various types of matter are considered. For these models, the cosmological parameters are constructed. Some alternative types of matter with negative pressure are considered instead of cosmological constant. It is shown that the model with dust and do...
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| Datum: | 2019 |
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| Format: | Artikel |
| Sprache: | English |
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Publishing house "Academperiodika"
2019
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| Online Zugang: | https://ujp.bitp.kiev.ua/index.php/ujp/article/view/2019043 |
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| Назва журналу: | Ukrainian Journal of Physics |
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Ukrainian Journal of Physics| id |
ujp2-article-2019043 |
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ujp2-article-20190432019-04-18T13:52:39Z Friedmann Cosmological Models with Various Equations of State of Matter Космологiчнi моделi Фрiдмана з рiзними рiвняннями стану матерiї Bormotova, I. M. Kopteva, E. M. Friedmann models acceleration of the universe domain walls radiation negative pressure - The Friedmann models of the universe filled with various types of matter are considered. For these models, the cosmological parameters are constructed. Some alternative types of matter with negative pressure are considered instead of cosmological constant. It is shown that the model with dust and domain walls leads to different types of the universe evolution depending on the ratio between constants of the model. The case where the resulting model is consistent with the cosmological observations is represented. Розглянуто фрiдмановськi моделi з рiзними типами матерiї. Для цих моделей дослiджено поведiнку космологiчних параметрiв. Розглянуто також космологiчнi моделi, в яких замiсть космологiчної сталої врахованi iншi види матерiї з негативним тиском. Показано, що в моделi з пилом i доменними стiнками можливi рiзнi типи еволюцiї всесвiту залежно вiд спiввiдношення мiж константами моделi. Запропоновано реалiзацiю такої моделi, що не суперечить спостережуваним даним. Publishing house "Academperiodika" 2019-01-05 Article Article Peer-reviewed Рецензована стаття application/pdf https://ujp.bitp.kiev.ua/index.php/ujp/article/view/2019043 10.15407/ujpe61.09.0843 Ukrainian Journal of Physics; Vol. 61 No. 9 (2016); 843 Український фізичний журнал; Том 61 № 9 (2016); 843 2071-0194 2071-0186 10.15407/ujpe61.09 en https://ujp.bitp.kiev.ua/index.php/ujp/article/view/2019043/929 Copyright (c) 2019 Bogolyubov Institute for Theoretical Physics, National Academy of Sciences of Ukraine |
| institution |
Ukrainian Journal of Physics |
| baseUrl_str |
|
| datestamp_date |
2019-04-18T13:52:39Z |
| collection |
OJS |
| language |
English |
| topic_facet |
Friedmann models acceleration of the universe domain walls radiation negative pressure - |
| format |
Article |
| author |
Bormotova, I. M. Kopteva, E. M. |
| spellingShingle |
Bormotova, I. M. Kopteva, E. M. Космологiчнi моделi Фрiдмана з рiзними рiвняннями стану матерiї |
| author_facet |
Bormotova, I. M. Kopteva, E. M. |
| author_sort |
Bormotova, I. M. |
| title |
Космологiчнi моделi Фрiдмана з рiзними рiвняннями стану матерiї |
| title_short |
Космологiчнi моделi Фрiдмана з рiзними рiвняннями стану матерiї |
| title_full |
Космологiчнi моделi Фрiдмана з рiзними рiвняннями стану матерiї |
| title_fullStr |
Космологiчнi моделi Фрiдмана з рiзними рiвняннями стану матерiї |
| title_full_unstemmed |
Космологiчнi моделi Фрiдмана з рiзними рiвняннями стану матерiї |
| title_sort |
космологiчнi моделi фрiдмана з рiзними рiвняннями стану матерiї |
| title_alt |
Friedmann Cosmological Models with Various Equations of State of Matter |
| description |
The Friedmann models of the universe filled with various types of matter are considered. For these models, the cosmological parameters are constructed. Some alternative types of matter with negative pressure are considered instead of cosmological constant. It is shown that the model with dust and domain walls leads to different types of the universe evolution depending on the ratio between constants of the model. The case where the resulting model is consistent with the cosmological observations is represented. |
| publisher |
Publishing house "Academperiodika" |
| publishDate |
2019 |
| url |
https://ujp.bitp.kiev.ua/index.php/ujp/article/view/2019043 |
| work_keys_str_mv |
AT bormotovaim friedmanncosmologicalmodelswithvariousequationsofstateofmatter AT koptevaem friedmanncosmologicalmodelswithvariousequationsofstateofmatter AT bormotovaim kosmologičnimodelifridmanazriznimirivnânnâmistanumaterií AT koptevaem kosmologičnimodelifridmanazriznimirivnânnâmistanumaterií |
| first_indexed |
2025-10-02T01:15:40Z |
| last_indexed |
2025-10-02T01:15:40Z |
| _version_ |
1851765155815227392 |