Probing a cosmological model with a Lambda = Lambda(0)+3 beta H-2 decaying vacuum

dc.contributorUniversidade Federal de São Paulo (UNIFESP)
dc.contributorINPE
dc.creatorBessada, Dennis [UNIFESP]
dc.creatorMiranda, Oswaldo D.
dc.date.accessioned2016-01-24T14:34:35Z
dc.date.accessioned2022-10-07T21:33:13Z
dc.date.available2016-01-24T14:34:35Z
dc.date.available2022-10-07T21:33:13Z
dc.date.created2016-01-24T14:34:35Z
dc.date.issued2013-10-25
dc.identifierPhysical Review D. College Pk: Amer Physical Soc, v. 88, n. 8, 7 p., 2013.
dc.identifier1550-7998
dc.identifierhttp://repositorio.unifesp.br/handle/11600/36882
dc.identifier10.1103/PhysRevD.88.083530
dc.identifierWOS:000326111500001
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/4030033
dc.description.abstractIn this work we study the evolution of matter-density perturbations for an arbitrary Lambda(t) model and specialize our analysis to the particular phenomenological law Lambda = Lambda(0) + 3 beta H-2. We study the evolution of the cosmic star formation rate in this particular dark energy scenario and, by constraining the beta parameter using both the age of the Universe and the cosmic star formation rate curve, we show that it leads to a reasonable physical model for beta less than or similar to 0.1.
dc.languageeng
dc.publisherAmer Physical Soc
dc.relationPhysical Review D
dc.rightshttp://publish.aps.org/authors/transfer-of-copyright-agreement
dc.rightsAcesso restrito
dc.titleProbing a cosmological model with a Lambda = Lambda(0)+3 beta H-2 decaying vacuum
dc.typeArtigo


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