Parametrization of dark energy equation of state Revisited

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dc.creatorJohri, Vinod B.
dc.creatorRath, P. K.
dc.date2005-10-01
dc.date2005-10-28
dc.date.accessioned2026-07-07T11:03:54Z
dc.date.available2026-07-07T11:03:54Z
dc.descriptionA comparative study of various parametrizations of the dark energy equation of state is made. Astrophysical constraints from LSS, CMB and BBN are laid down to test the physical viability and cosmological compatibility of these parametrizations. A critical evaluation of the 4-index parametrizations reveals that Hannestad-Mörtsell as well as Lee parametrizations are simple and transparent in probing the evolution of the dark energy during the expansion history of the universe and they satisfy the LSS, CMB and BBN constraints on the dark energy density parameter for the best fit values.
dc.description11 pages
dc.identifierhttps://arxiv.org/abs/astro-ph/0510017
dc.identifierhttp://arxiv.org/abs/astro-ph/0510017
dc.identifierInt.J.Mod.Phys.D16:1581-1591,2007
dc.identifierdoi:10.1142/S0218271807010973
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/188705
dc.subjectAstrophysics
dc.titleParametrization of dark energy equation of state Revisited
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