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Proceedings Paper

A simple optical design for a space Dark Energy Mission
Author(s): Robert Grange; Bruno Milliard; Jean Paul Kneib; Anne Ealet
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Paper Abstract

Understanding the nature of the dark energy responsible of the apparent acceleration of the Universe is one of the most challenging questions of our modern Cosmology and Fundamental Physics. On both side of the Atlantic a great deal of effort has been spent to design and optimize space missions able to probe the nature of this dark energy. These missions generally use two or three of the major cosmological probes: Baryonic Acoustic Oscillation (BAO), Weak Lensing (WL) and Type Ia Supernovae (SNe). Many of the proposed missions concept rely on having different instruments sharing a common optical interface and thus leading to a highly complex system. By adopting a different conceptual approach we studied a fully integrated optical design yielding to a simple and more cost effective mission. The survey strategy will also benefit from this design which offers a better time sharing between the different probes.

Paper Details

Date Published: 10 August 2010
PDF: 5 pages
Proc. SPIE 7731, Space Telescopes and Instrumentation 2010: Optical, Infrared, and Millimeter Wave, 77313H (10 August 2010); doi: 10.1117/12.857181
Show Author Affiliations
Robert Grange, Lab. d'Astrophysique de Marseille (France)
Bruno Milliard, Lab. d'Astrophysique de Marseille (France)
Jean Paul Kneib, Lab. d'Astrophysique de Marseille (France)
Anne Ealet, Ctr. de Physique des Particules de Marseille (France)

Published in SPIE Proceedings Vol. 7731:
Space Telescopes and Instrumentation 2010: Optical, Infrared, and Millimeter Wave
Jacobus M. Oschmann Jr.; Mark C. Clampin; Howard A. MacEwen, Editor(s)

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