$Λ$-CDM Universe: A Phenomenological Approach With Many Possibilities

dc.creatorMukhopadhyay, U.
dc.creatorRay, Saibal
dc.creatorChoudhury, S. B. Dutta
dc.date2007-08-05
dc.date2008-03-12
dc.date.accessioned2026-07-07T11:18:25Z
dc.date.available2026-07-07T11:18:25Z
dc.descriptionA time-dependent phenomenological model of $Λ$, viz. $\dot Λ\sim H^3$ is selected to investigate the $Λ$-CDM cosmology. Time-dependent form of the equation of state parameter $ω$ is derived and it has been possible to obtain the sought for flip of sign of the deceleration parameter q. Present age of the Universe, calculated for some specific values of the parameters agrees very well with the observational data.
dc.description10 Latex pages; Corrected typos; To appear in Int. J. Mod. Phys. D
dc.identifierhttps://arxiv.org/abs/0708.0680
dc.identifierhttp://arxiv.org/abs/0708.0680
dc.identifierInt.J.Mod.Phys.D17:301-309,2008
dc.identifierdoi:10.1142/S0218271808012012
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/193340
dc.subjectGeneral Relativity and Quantum Cosmology
dc.title$Λ$-CDM Universe: A Phenomenological Approach With Many Possibilities
dc.typetext

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