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• W1965980658 abstract "In this paper, we report the results of constraining the dynamical dark energy with a divergence-free parameterization, $w(z) = w_{0} + w_{a}(frac{ln(2+z)}{1+z}-ln2)$, in the presence of spatial curvature and massive neutrinos, with the 7-yr WMAP temperature and polarization data, the power spectrum of LRGs derived from SDSS DR7, the Type Ia supernova data from Union2 sample, and the new measurements of $H_0$ from HST, by using a MCMC global fit method. Our focus is on the determinations of the spatial curvature, $Omega_k$, and the total mass of neutrinos, $sum m_{nu}$, in such a dynamical dark energy scenario, and the influence of these factors to the constraints on the dark energy parameters, $w_0$ and $w_a$. We show that $Omega_k$ and $sum m_{nu}$ can be well constrained in this model; the 95% CL limits are: $-0.0153<Omega_k<0.0167$ and $sum m_{nu}<0.56$ eV. Comparing to the case in a flat universe, we find that the error in $w_0$ is amplified by 25.51%, and the error in $w_a$ is amplified by 0.14%; comparing to the case with a zero neutrino mass, we find that the error in $w_0$ is amplified by 12.24%, and the error in $w_a$ is amplified by 1.63%." @default.
• W1965980658 created "2016-06-24" @default.
• W1965980658 creator A5020810072 @default.
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• W1965980658 date "2012-07-01" @default.
• W1965980658 modified "2023-10-15" @default.
• W1965980658 title "Constraining dynamical dark energy with a divergence-free parametrization in the presence of spatial curvature and massive neutrinos" @default.
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• W1965980658 doi "https://doi.org/10.1016/j.physletb.2012.06.030" @default.
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