21 September 2012 Euclid mission: building of a reference survey
Author Affiliations +
Abstract
Euclid is an ESA Cosmic-Vision wide-field-space mission which is designed to explain the origin of the acceleration of Universe expansion. The mission will investigate at the same time two primary cosmological probes: Weak gravitational Lensing (WL) and Galaxy Clustering (in particular Baryon Acoustic Oscillations, BAO). The extreme precision requested on primary science objectives can only be achieved by observing a large number of galaxies distributed over the whole sky in order to probe the distribution of dark matter and galaxies at all scales. The extreme accuracy needed requires observation from space to limit all observational biases in the measurements. The definition of the Euclid survey, aiming at detecting billions of galaxies over 15 000 square degrees of the extragalactic sky, is a key parameter of the mission. It drives its scientific potential, its duration and the mass of the spacecraft. The construction of a Reference Survey derives from the high level science requirements for a Wide and a Deep survey. The definition of a main sequence of observations and the associated calibrations were indeed a major achievement of the Definition Phase. Implementation of this sequence demonstrated the feasibility of covering the requested area in less than 6 years while taking into account the overheads of space segment observing and maneuvering sequence. This reference mission will be used for sizing the spacecraft consumables needed for primary science. It will also set the framework for optimizing the time on the sky to fulfill the primary science and maximize the Euclid legacy.
© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
J. Amiaux, J. Amiaux, R. Scaramella, R. Scaramella, Y. Mellier, Y. Mellier, B. Altieri, B. Altieri, C. Burigana, C. Burigana, Antonio Da Silva, Antonio Da Silva, P. Gomez, P. Gomez, J. Hoar, J. Hoar, R. Laureijs, R. Laureijs, E. Maiorano, E. Maiorano, D. Magalhães Oliveira, D. Magalhães Oliveira, F. Renk, F. Renk, G. Saavedra Criado, G. Saavedra Criado, I. Tereno, I. Tereno, J. L. Auguères, J. L. Auguères, J. Brinchmann, J. Brinchmann, M. Cropper, M. Cropper, L. Duvet, L. Duvet, A. Ealet, A. Ealet, P. Franzetti, P. Franzetti, B. Garilli, B. Garilli, P. Gondoin, P. Gondoin, L. Guzzo, L. Guzzo, H. Hoekstra, H. Hoekstra, R. Holmes, R. Holmes, K. Jahnke, K. Jahnke, T. Kitching, T. Kitching, M. Meneghetti, M. Meneghetti, W. Percival, W. Percival, S. Warren, S. Warren, } "Euclid mission: building of a reference survey", Proc. SPIE 8442, Space Telescopes and Instrumentation 2012: Optical, Infrared, and Millimeter Wave, 84420Z (21 September 2012); doi: 10.1117/12.926513; https://doi.org/10.1117/12.926513
PROCEEDINGS
11 PAGES


SHARE
RELATED CONTENT

High resolution near IR spectroscopy with GIANO-TNG
Proceedings of SPIE (July 07 2014)
On the use of asymmetric PSF on NIR images of...
Proceedings of SPIE (August 06 2014)
Stellar photometry with multi conjugate adaptive optics
Proceedings of SPIE (July 25 2016)
Selecting pixels for Kepler downlink
Proceedings of SPIE (July 19 2010)
Summary of the DUNE mission concept
Proceedings of SPIE (July 11 2008)

Back to Top