RT Journal Article
T1 Confronting quintessence models with recent high-redshift supernovae data
A1 Barro Calvo, G.
A1 López Maroto, Antonio
AB We confront the predictions of different quintessence models with recent measurements of the luminosity distance from two sets of supernovae type Ia. In particular, we consider the 157 SNe Ia in the Gold dataset with z < 1.7, and the more recent data containing 71 supernovae obtained by the Supernova Legacy Survey (SNLS) with z < 1. We numerically solve the evolution equations for the Ratra-Peebles inverse power-law model, the double exponential and the hyperbolic cosine quintessence models. We obtain confidence regions from the two datasets in the Omega(M)-alpha and Omega(M)-w(phi) planes for the different models and compare their predictions with dark energy models with constant equation of state.
PB American Physical Society
SN 1550-7998
YR 2006
FD 2006-10-26
LK https://hdl.handle.net/20.500.14352/51226
UL https://hdl.handle.net/20.500.14352/51226
LA eng
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NO © 2006 The American Physical Society. We would like to thank P. Astier for useful comments. This work has been partially supported by DGICYT (Spain) under project numbers FPA 2004-02602 and FPA 2005-02327.
NO DGICYT (Spain)
DS Docta Complutense
RD 16 may 2024