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Proceedings Paper

Euclid Mission: building of a reference survey
Author(s): J. Amiaux; R. Scaramella; Y. Mellier; B. Altieri; C. Burigana; Antonio Da Silva; P. Gomez; J. Hoar; R. Laureijs; E. Maiorano; D. Magalhães Oliveira; F. Renk; G. Saavedra Criado; I. Tereno; J. L. Auguères; J. Brinchmann; M. Cropper; L. Duvet; A. Ealet; P. Franzetti; B. Garilli; P. Gondoin; L. Guzzo; H. Hoekstra; R. Holmes; K. Jahnke; T. Kitching; M. Meneghetti; W. Percival; S. Warren
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Paper 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.

Paper Details

Date Published: 21 September 2012
PDF: 11 pages
Proc. SPIE 8442, Space Telescopes and Instrumentation 2012: Optical, Infrared, and Millimeter Wave, 84420Z (21 September 2012); doi: 10.1117/12.926513
Show Author Affiliations
J. Amiaux, Commissariat à l'Énergie Atomique (France)
R. Scaramella, INAF - Osservatorio Astronomico di Roma (Italy)
Y. Mellier, Institut d'Astrophysique de Paris (France)
B. Altieri, European Space Astronomy Ctr. (Spain)
C. Burigana, INAF - IASF Bologna (Italy)
Antonio Da Silva, Ctr. de Astrofísica, Univ. do Porto (Portugal)
P. Gomez, European Space Astronomy Ctr. (Spain)
J. Hoar, European Space Astronomy Ctr. (Spain)
R. Laureijs, European Space Research and Technology Ctr. (Netherlands)
E. Maiorano, INAF - IASF Bologna (Italy)
D. Magalhães Oliveira, Ctr. de Astrofísica, Univ. do Porto (Portugal)
F. Renk, European Space Operations Ctr. (Germany)
G. Saavedra Criado, European Space Research and Technology Ctr. (Netherlands)
I. Tereno, Ctr. de Astronomia e Astrofisica, Univ. de Lisboa (Portugal)
J. L. Auguères, Commissariat à l'Énergie Atomique (France)
J. Brinchmann, Leiden Observatory, Leiden Univ. (Netherlands)
M. Cropper, Mullard Space Science Lab., Univ. College London (United Kingdom)
L. Duvet, European Space Research and Technology Ctr. (Netherlands)
A. Ealet, Ctr. de Physique des Particules de Marseille (France)
P. Franzetti, INAF - IASF Milano (Italy)
B. Garilli, INAF - IASF Milano (Italy)
P. Gondoin, European Space Research and Technology Ctr. (Netherlands)
L. Guzzo, INAF - Osservatorio Astronomico di Brera (Italy)
H. Hoekstra, Leiden Observatory, Leiden Univ. (Netherlands)
R. Holmes, Max-Planck-Institut für Astronomie (Germany)
K. Jahnke, Max-Planck-Institut für Astronomie (Germany)
T. Kitching, The Royal Observatory, Edinburgh (United Kingdom)
M. Meneghetti, INAF - Osservatorio Astronomico di Bologna (Italy)
W. Percival, Univ. of Portsmouth (United Kingdom)
S. Warren, Imperial College London (United Kingdom)


Published in SPIE Proceedings Vol. 8442:
Space Telescopes and Instrumentation 2012: Optical, Infrared, and Millimeter Wave
Mark C. Clampin; Giovanni G. Fazio; Howard A. MacEwen; Jacobus M. Oschmann, Editor(s)

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