46 citations · 56 across the 2 of their papers we have counts for
8 papers · 1 filter
Galaxy Distribution as a Probe of the Ringlike Dark Matter Structure in the Galaxy Cluster Cl0024+17
Bo Qin, Huan-Yuan Shan, Andre Tilquin
In a galaxy cluster, galaxies are mostly collisionless particles in recent epoches. They resemble collisionless cold dark matter particles in some way. Therefore, the spatial distr…
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…
Dark gravity and cosmology
F. Henry-Couannier, A. Tilquin, C. Tao +1
The previous version of this article was a first attempt to confront the Dark Gravity theory to cosmological data. However, more recent developments lead to the conclusion that the…
Prospects for Dark Energy Evolution: a Frequentist Multi-Probe Approach
Ch. Yeche, A. Ealet, A. Refregier +4
A major quest in cosmology is the understanding of the nature of dark energy. It is now well known that a combination of cosmological probes is required to break the underlying deg…
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…