Back to Volume
Paper: Dark Energy Science Constraints on Calibration: Design of the SNAP Calibration System
Volume: 364, The Future of Photometric, Spectrophotometric, and Polarimetric Standardization
Page: 355
Authors: Deustua, S.; SNAP Calibration Team
Abstract: The determination of dark energy properties is the science goal of JDEM (Joint Dark Energy Mission). The SNAP (Supernova/Acceleration Probe) collaboration proposes to investigate the dark energy by going beyond Lambda, beyond a constant equation of state to the dynamical variation of dark energy, and testing the geometry (flatness) and gravity beyond Einstein. This is accomplished through comprehensive supernova distance and weak gravitational lensing surveys and a multi-color, wide-field, imaging program. This science demands high precision and accuracy, placing stringent requirements particularly on the the absolute color calibration of supernovae. The overall calibration for the SNAP focal plane will be conducted through several routes. Basic issues in calibration and possible strategies to meet these requirements over the wavelength range between 0.4–1.7 μm are briefly described.
Back to Volume