Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/16206
Registo completo
Campo DC | Valor | Idioma |
---|---|---|
dc.contributor.author | Mena, Filipe C. | - |
dc.contributor.author | Delliou, Morgan Le | - |
dc.contributor.author | Mimoso, José P. | - |
dc.date.accessioned | 2012-01-05T15:28:05Z | - |
dc.date.available | 2012-01-05T15:28:05Z | - |
dc.date.issued | 2011 | - |
dc.identifier.issn | 1550-2368 | por |
dc.identifier.issn | 1550-7998 | por |
dc.identifier.uri | https://hdl.handle.net/1822/16206 | - |
dc.description.abstract | We analyse the dynamics of trapped matter shells in spherically symmetric inhomogeneous Lambda- CDM models. The investigation uses a Generalised Lemaître-Tolman-Bondi description with initial conditions subject to the constraints of having spatially asymptotic cosmological expansion, initial Hubble-type flow and a regular initial density distribution. We discuss the effects of shell crossing and use a qualitative description of the local trapped matter shells to explore global properties of the models. Once shell crossing occurs, we find a splitting of the global shells separating expansion from collapse into, at most, two global shells: an inner and an outer limit trapped matter shell. In the case of expanding models, the outer limit trapped matter shell necessarily exists. We also study the role of shear in this process, compare our analysis with the Newtonian framework and give concrete examples using density profile models of structure formation in cosmology. | por |
dc.language.iso | eng | por |
dc.publisher | American Physical Society | por |
dc.rights | restrictedAccess | por |
dc.title | The role of shell crossing on the existence and stability of trapped matter shells in spherical inhomogeneous Lambda-CDM models | por |
dc.type | article | por |
dc.peerreviewed | yes | por |
dc.relation.publisherversion | http://prd.aps.org/abstract/PRD/v83/i10/e103528 | por |
sdum.publicationstatus | published | por |
oaire.citationStartPage | 103528 | por |
oaire.citationEndPage | 103544 | por |
oaire.citationIssue | 10 | por |
oaire.citationTitle | Physical Review D | por |
oaire.citationVolume | 83 | por |
sdum.journal | Physical Review D | por |
Aparece nas coleções: | CMAT - Artigos em revistas com arbitragem / Papers in peer review journals |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
---|---|---|---|---|
Delliou-Mena-Mimoso-2011.pdf Acesso restrito! | 484,78 kB | Adobe PDF | Ver/Abrir |