62 citations · 218 across the 17 of their papers we have counts for
5 papers · 1 filter
On the determination of curvature and dynamical Dark Energy
J. -M. Virey, D. Talon-Esmieu, A. Ealet +2
Constraining simultaneously the Dark Energy(DE) equation of state and the curvature of the Universe is difficult due to strong degeneracies. To circumvent this problem when analyzi…
Geometrical tests of cosmological models. III. The cosmology-evolution diagram at z=1
C. Marinoni, A. Saintonge, T. Contini +22
The rotational velocity of distant galaxies, when interpreted as a size (luminosity) indicator, may be used as a tool to select high redshift standard rods (candles) and probe worl…
On the determination of the deceleration parameter from Supernovae data
J. -M. Virey, P. Taxil, A. Tilquin +3
Supernovae searches have shown that a simple matter-dominated and decelerating universe should be ruled out. However a determination of the present deceleration parameter thr…
Probing Dark Energy with Supernovae : a concordant or a convergent model?
J. -M. Virey, A. Ealet, C. Tao +4
We present a revised interpretation of recent analysis of supernovae data. We evaluate the effect of the priors on the extraction of the dark energy equation of state. We find that…
Probing Dark Energy with Supernovae : Bias from the time evolution of the equation of state
J. -M. Virey, P. Taxil, A. Tilquin +3
Observation of thousands of type Ia supernovae should offer the most direct approach to probe the dark energy content of the universe. This will be undertaken by future large groun…