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Image Slicer Performances from a Demonstrator for the SNAP/JDEM Mission - Part I: Wavelength Accuracy
M-H. Aumeunier, A. Ealet, E. Prieto +2
A well-adapted visible and infrared spectrograph has been developed for the SNAP (SuperNova/Acceleration Probe) experiment proposed for JDEM. The instrument should have a high sens…
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…
Sensitivity and figures of merit for dark energy supernovae surveys
J. -M. Virey, A. Ealet
Tracking the origin of the accelerating expansion of the Universe remains one of the most challenging research activities today. The final answer will depend on the precision and o…
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…
Probing Dark Energy via Weak Gravitational Lensing with the SuperNova Acceleration Probe (SNAP)
SNAP Collaboration
SNAP is a candidate for the Joint Dark Energy Mission (JDEM) that seeks to place constraints on the dark energy using two distinct methods. The first, Type Ia SN, is discussed in a…
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…