Astronomy and Astrophysics – Astrophysics
Scientific paper
2008-05-13
JCAP 0802:018,2008
Astronomy and Astrophysics
Astrophysics
13 pages, 6 figures
Scientific paper
10.1088/1475-7516/2008/02/018
We investigate the equation of state w(z) in a non-parametric form using the latest compilations of distance luminosity from SNe Ia at high z. We combine the inverse problem approach with a Monte Carlo to scan the space of priors. On the light of these high redshift supernova data sets, we reconstruct w(z). A comparison between a sample including the latest results at z>1 and a sample without those results show the improvement achieved by observations of very high z supernovae. We present the prospects to measure the variation of dark energy density along z by this method.
Espana-Bonet Cristina
Ruiz-Lapuente Pilar
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