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          Institute: MPI für Astronomie     Collection: Publikationen_mpia     Display Documents



ID: 661109.0, MPI für Astronomie / Publikationen_mpia
Euclid Mission: building of a reference survey
Authors:Amiaux, J.; Scaramella, R.; Mellier, Y.; Altieri, B.; Burigana, C.; Da Silva, A.; Gomez, P.; Hoar, J.; Laureijs, R.; Maiorano, E.; Magalhaes Oliveira, D.; Renk, F.; Saavedra Criado, G.; Tereno, I.; Augueres, J. L.; Brinchmann, J.; Cropper, M.; Duvet, L.; Ealet, A.; Franzetti, P.; Garilli, B.; Gondoin, P.; Guzzo, L.; Hoekstra, H.; Holmes, R.; Jahnke, K.; Kitching, T.; Meneghetti, M.; Percival, W.; Warren, S.; collaboration, t. E.
Publisher:SPIE
Date of Publication (YYYY-MM-DD):2012
Title of Proceedings:Optical, Infrared, and Millimeter Wave
Start Page:id. 84420Z-84420Z
End Page:11
Volume (in Series):8442
Name of Conference/Meeting:Optical, Infrared, and Millimeter Wave
Audience:Not Specified
Abstract / Description: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.
Free Keywords:Astrophysics - Instrumentation and Methods for Astrophysics; Astrophysics - Cosmology and Extragalactic Astrophysics
Comment of the Author/Creator:Date: 2012, September 1, 2012
External Publication Status:published
Document Type:Conference-Paper
Communicated by:N. N.
Affiliations:MPI für Astronomie
Identifiers:URL:http://cdsads.u-strasbg.fr/abs/2012arXiv1209.2228A
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