New Constraints on the Variable Equation of State Parameter from X-Ray Gas Mass Fractions and SNe Ia

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dc.creatorCunha, J. V.
dc.creatorMarassi, L.
dc.creatorSantos, R. C.
dc.date2006-08-31
dc.date.accessioned2026-07-07T10:39:55Z
dc.date.available2026-07-07T10:39:55Z
dc.descriptionRecent measurements are suggesting that we live in a flat Universe and that its present accelerating stage is driven by a dark energy component whose equation of state may evolve in time. Assuming two different parameterizations for the function $ω(z)$, we constrain their free parameters from a joint analysis involving measurements from X-Ray luminosity of galaxy clusters and SNe type Ia data.
dc.descriptionpaper, 6 pages, 1 figure Accepted by Int. Journal of Modern Physics D (IJPMD)
dc.identifierhttps://arxiv.org/abs/astro-ph/0608686
dc.identifierhttp://arxiv.org/abs/astro-ph/0608686
dc.identifierInt.J.Mod.Phys.D16:403-409,2007
dc.identifierdoi:10.1142/S0218271807010183
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/181201
dc.subjectAstrophysics
dc.titleNew Constraints on the Variable Equation of State Parameter from X-Ray Gas Mass Fractions and SNe Ia
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