Speaker
Mrs
Delphine HARDIN
(Pierre & Marie Curie University, Paris)
Description
We present the recent results from the analysis of the Supernova Legacy Survey 3-years data sample.
For the dark energy equation of state, assuming a flat universe, we measure a w parameter consistent with a cosmological constantwith a precision of 0.2. We have paid particular attention to the systematic uncertainties.
We combine the SNe data with baryon acoustic oscillation measurements from the Sloan Digital Sky Survey (SDSS) and measurements of the cosmic microwave background power spectrum from the WMAP-7 year data, to obtain, under the flat universe hypothesis, a measurement of the dark energy equation of state w = -1.068 with a precision of 0.08.
Author
Mrs
Delphine HARDIN
(Pierre & Marie Curie University, Paris)
