Acoustic instabilities at the transition from the radiation-dominated to the matter-dominated universe

2004
journal article
article
cris.lastimport.wos2024-04-09T23:29:52Z
dc.abstract.enThe transition from acoustic noise in the radiation-dominated universe to the density structures in the matter dominated epoch is considered. The initial state is a stochastic field of sound waves moving in different directions. The construction of the initial state is compatible with the hyperbolic type of propagation equation for density perturbations, and parallel to the theory of stochastic background of gravitational waves. Instantaneous transition between the cosmological epochs is assumed, and Darmois-Israel joining conditions are applied to match solutions for sound waves with growing or decaying modes at the decoupling. As a result a substantial amplification of the low scale structures is obtained.pl
dc.affiliationWydział Fizyki, Astronomii i Informatyki Stosowanej : Instytut – Obserwatorium Astronomicznepl
dc.contributor.authorSiemieniec-Oziębło, Grażyna - 131853 pl
dc.contributor.authorWoszczyna, Andrzej - 132741 pl
dc.date.accessioned2020-12-09T13:18:59Z
dc.date.available2020-12-09T13:18:59Z
dc.date.issued2004pl
dc.date.openaccess12
dc.description.accesstimepo opublikowaniu
dc.description.additionalReproduced with permission from Astronomy & Astrophysics, © ESOpl
dc.description.number3pl
dc.description.physical801-810pl
dc.description.versionostateczna wersja wydawcy
dc.description.volume419pl
dc.identifier.doi10.1051/0004-6361:20040097pl
dc.identifier.eissn1432-0746pl
dc.identifier.issn0004-6361pl
dc.identifier.projectROD UJ / OPpl
dc.identifier.urihttps://ruj.uj.edu.pl/xmlui/handle/item/258499
dc.languageengpl
dc.language.containerengpl
dc.rightsUdzielam licencji. Uznanie autorstwa - Użycie niekomercyjne - Na tych samych warunkach 4.0 Międzynarodowa*
dc.rights.licenceOTHER
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/4.0/legalcode.pl*
dc.share.typeotwarte czasopismo
dc.subject.encosmology: theorypl
dc.subject.encosmology: miscellaneouspl
dc.subject.encosmology: large-scale structure of the universepl
dc.subtypeArticlepl
dc.titleAcoustic instabilities at the transition from the radiation-dominated to the matter-dominated universepl
dc.title.journalAstronomy & Astrophysicspl
dc.typeJournalArticlepl
dspace.entity.typePublication
cris.lastimport.wos
2024-04-09T23:29:52Z
dc.abstract.enpl
The transition from acoustic noise in the radiation-dominated universe to the density structures in the matter dominated epoch is considered. The initial state is a stochastic field of sound waves moving in different directions. The construction of the initial state is compatible with the hyperbolic type of propagation equation for density perturbations, and parallel to the theory of stochastic background of gravitational waves. Instantaneous transition between the cosmological epochs is assumed, and Darmois-Israel joining conditions are applied to match solutions for sound waves with growing or decaying modes at the decoupling. As a result a substantial amplification of the low scale structures is obtained.
dc.affiliationpl
Wydział Fizyki, Astronomii i Informatyki Stosowanej : Instytut – Obserwatorium Astronomiczne
dc.contributor.authorpl
Siemieniec-Oziębło, Grażyna - 131853
dc.contributor.authorpl
Woszczyna, Andrzej - 132741
dc.date.accessioned
2020-12-09T13:18:59Z
dc.date.available
2020-12-09T13:18:59Z
dc.date.issuedpl
2004
dc.date.openaccess
12
dc.description.accesstime
po opublikowaniu
dc.description.additionalpl
Reproduced with permission from Astronomy & Astrophysics, © ESO
dc.description.numberpl
3
dc.description.physicalpl
801-810
dc.description.version
ostateczna wersja wydawcy
dc.description.volumepl
419
dc.identifier.doipl
10.1051/0004-6361:20040097
dc.identifier.eissnpl
1432-0746
dc.identifier.issnpl
0004-6361
dc.identifier.projectpl
ROD UJ / OP
dc.identifier.uri
https://ruj.uj.edu.pl/xmlui/handle/item/258499
dc.languagepl
eng
dc.language.containerpl
eng
dc.rights*
Udzielam licencji. Uznanie autorstwa - Użycie niekomercyjne - Na tych samych warunkach 4.0 Międzynarodowa
dc.rights.licence
OTHER
dc.rights.uri*
http://creativecommons.org/licenses/by-nc-sa/4.0/legalcode.pl
dc.share.type
otwarte czasopismo
dc.subject.enpl
cosmology: theory
dc.subject.enpl
cosmology: miscellaneous
dc.subject.enpl
cosmology: large-scale structure of the universe
dc.subtypepl
Article
dc.titlepl
Acoustic instabilities at the transition from the radiation-dominated to the matter-dominated universe
dc.title.journalpl
Astronomy & Astrophysics
dc.typepl
JournalArticle
dspace.entity.type
Publication

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