2011/02/24 by Sudeep Das, Roland de Putter, Eric V. Linder +1
Physics and Astronomy · #Astronomy #Astronomy and Astrophysical Research #Astrophysics #Cosmology #Cosmology and Gravitation Theories #Dark energy #Dark matter #Galaxies: Formation, Evolution, Phenomena #Galaxy #Gravitational lens #Lambda-CDM model #Matter power spectrum #Neutrino #Particle physics #Physics #Redshift #Spectral density #Weak gravitational lensing #astro-ph.CO
paper · pdf · doi:10.1088/1475-7516/2012/11/011
published as JCAP 11(2012)011 · 11 pages, 9 figures
arxiv created 2011/02/24 · openalex publication_date 2012/11/06 · arxiv updated 2012/11/12 · openalex created_date 2017/05/26 · openalex updated_date 2026/08/05
Weak gravitational lensing is one of the key probes of the cosmological model, dark energy, and dark matter, providing insight into both the cosmic expansion history and large scale structure growth history. Taking into account a broad spectrum of physics affecting growth — dynamical dark energy, extended gravity, neutrino masses, and spatial curvature — we analyze the cosmological constraints. Similarly we consider the effects of a range of systematic uncertainties, in shear measurement, photometric redshifts, intrinsic alignments, and the nonlinear power spectrum, on cosmological parameter extraction. We also investigate, and provide fitting formulas for, the influence of survey parameters such as redshift depth, galaxy number densities, and sky area on the cosmological constraints in the beyond-ΛCDM parameter space. Finally, we examine the robustness of results for different fiducial cosmologies.