Instrumental systematics and weak gravitational lensing

Abstract

We present a pedagogical review of the weak gravitational lensing measurement process and its connection to major scientific questions such as dark matter and dark energy. Then we describe common ways of parametrizing systematic errors and understanding how they affect weak lensing measurements. Finally, we discuss several instrumental systematics and how they fit into this context, and conclude with some future perspective on how progress can be made in understanding the impact of instrumental systematics on weak lensing measurements.

This is a simple, pedagogical review of how shear systematics affect weak lensing measurements. 11 pages; contribution to the proceedings of PACCD14, accepted for publication in JINST

References in corpus (10)

• Wide-Field InfrarRed Survey Telescope-Astrophysics Focused Telescope Assets WFIRST-AFTA 2015 Report
• Report of the Dark Energy Task Force
• A discriminating probe of gravity at cosmological scales
• The Shear TEsting Programme 2: Factors affecting high precision weak lensing analyses
• Confirmation of general relativity on large scales from weak lensing and galaxy velocities
• The Intrinsic Alignment of Galaxies and its Impact on Weak Gravitational Lensing in an Era of Precision Cosmology
• Image Analysis for Cosmology: Results from the GREAT10 Galaxy Challenge
• The galaxy-halo connection from a joint lensing, clustering and abundance analysis in the CFHTLenS/VIPERS field
• Analytic model for the matter power spectrum, its covariance matrix, and baryonic effects
• Evidence for self-interaction of charge distribution in charge-coupled devices