Constraining Dark Energy Evolution with Gravitational Lensing by Large Scale Structures

Abstract

We study the sensitivity of weak lensing by large scale structures to the evolution of dark energy. We explore a 2-parameters model of dark energy evolution, inspired by tracking quintessence models. To this end, we compute the likelihood of a few representative models with varying and non varying equation of states. Based on an earlier work, we show that the evolution of dark energy has a much stronger impact on the non-linear structure growth than on the angular diameter distance, which makes large scale structure measurements a very efficient probe of this evolution. For the different models, we investigate the dark energy parameters degeneracies with the mass power spectrum shape Gamma, normalisation sigma_8, and with the matter mean density Omega_M. This result is a strong motivation for performing large scale structure simulations beyond the simple constant dark energy models, in order to calibrate the non-linear regime accurately. Prospective for the Canada France Hawaii Telescope Legacy Survey (CFHTLS) and Super-Novae Acceleration Probe (SNAP) are given. These results complement nicely the cosmic microwave background and Super-Novae constraints. Weak lensing is shown to be more sensitive to a variation of the equation of state, whereas CMB and SNIa give information on its constant part.

Submitted to Physical Review D

References in corpus (16)

• First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Determination of Cosmological Parameters
• Exploring the Expansion History of the Universe
• Can the dark energy equation-of-state parameter w be less than -1?
• Exploring the Expanding Universe and Dark Energy using the Statefinder Diagnostic
• Weak Gravitational Lensing by Large-Scale Structure
• Cosmic Structure Growth and Dark Energy
• A theoretician's analysis of the supernova data and the limitations in determining the nature of dark energy
• Constraining dark energy from the abundance of weak gravitational lenses
• Detection of dark matter Skewness in the VIRMOS-DESCART survey: Implications for Ω_0
• Self-Consistency and Calibration of Cluster Number Count Surveys for Dark Energy
• The effect of imperfect corrections of PSF anisotropy on cosmic shear measurements
• Halo properties in models with dynamical Dark Energy
• Weak Lensing from Space III: Cosmological Parameters
• Probing the dark energy with strong lensing by clusters of galaxies
• Arc Statistics in Cosmological Models with Dark Energy
• Evolution of large-scale perturbations in quintessence models

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• Quantum effects can render w<-1 on cosmological scales
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• Systematic Errors in Future Weak Lensing Surveys: Requirements and Prospects for Self-Calibration
• Evidence for the accelerated expansion of the Universe from weak lensing tomography with COSMOS
• The Intrinsic Alignment of Galaxies and its Impact on Weak Gravitational Lensing in an Era of Precision Cosmology
• Detection of large scale intrinsic ellipticity-density correlation from the Sloan Digital Sky Survey and implications for weak lensing surveys
• The first-year shear catalog of the Subaru Hyper Suprime-Cam SSP Survey
• Differentiating between Modified Gravity and Dark Energy
• Dynamical dark energy: Current constraints and forecasts
• Cosmic Shear Analysis with CFHTLS Deep data
• Weak lensing in scalar-tensor theories of gravity
• Galaxy Shapes and Intrinsic Alignments in The MassiveBlack-II Simulation
• Analysis of two-point statistics of cosmic shear: III. Covariances of shear measures made easy
• Intrinsic alignments of galaxies in the MassiveBlack-II simulation: analysis of two-point statistics
• Tracking quintessence by cosmic shear - Constraints from VIRMOS-Descart and CFHTLS and future prospects
• Dependence of the non-linear mass power spectrum on the equation of state of dark energy
• Isolating Geometry in Weak Lensing Measurements
• Probing decisive answers to dark energy questions from cosmic complementarity and lensing tomography
• Evolution of the Dark Matter Distribution with 3-D Weak Lensing
• Spectroscopic source redshifts and parameter constraints from weak lensing and CMB
• Sources of contamination to weak lensing tomography: redshift-dependent shear measurement bias
• Prospects for Dark Energy Evolution: a Frequentist Multi-Probe Approach
• Testing Dark Energy with the Advanced Liquid-Mirror Probe of Asteroids, Cosmology and Astrophysics
• The cosmic shear three-point functions
• LeMoMaF: Lensed Mock Map Facility
• Cosmology with Weak Lensing Surveys
• Scalar-field quintessence by cosmic shear: CFHT data analysis and forecasts for DUNE
• Particle Physics in the Sky and Astrophysics Underground: Connecting the Universe's Largest and Smallest Scales