Principal component analysis of weak lensing surveys

2005/11/30 by D. Munshi, Dipak Munshi, Martin Kilbinger +1
Physics and Astronomy · #Astronomy and Astrophysical Research #Cosmology and Gravitation Theories #Galaxies: Formation, Evolution, Phenomena #astro-ph

paper · pdf · doi:10.1051/0004-6361:20054586

published as Astron.Astrophys.452:63,2006 · 13 pages, 17 figures. A&A in press, matches the version to be published

arxiv created 2006/03/01 · openalex publication_date 2006/05/17 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/31

Abstract

Aims.We study degeneracies between cosmological parameters and measurement errors from cosmic shear surveys. We simulate realistic survey topologies with non-uniform sky coverage, and quantify the effect of survey geometry, depth and noise from intrinsic galaxy ellipticities on the parameter errors. This analysis allows us to optimise the survey geometry.

Citations

• Weak Lensing from Space. II. Dark Matter Mapping
• Probing the Universe with Weak Lensing
• First‐Year Wilkinson Microwave Anisotropy Probe ( WMAP ) Observations: Determination of Cosmological Parameters
• Power Spectrum Tomography with Weak Lensing
• Weak Gravitational Lensing by Large-Scale Structure