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Proceedings Paper

DUNE: the Dark Universe Explorer
Author(s): Alexandre Réfrégier; Olivier Boulade; Yannick Mellier; Bruno Milliard; Reynald Pain; Joel Michaud; Frédéric Safa; Adam Amara; Pierre Astier; Etienne Barrelet; Emmanuel Bertin; Sébastien Boulade; Christophe Cara; Arnaud Claret; Laurent Georges; Robert Grange; Julien Guy; Charles Koeck; Laurent Kroely; Christophe Magneville; Nathalie Palanque-Delabrouille; Nicolas Regnault; Gérard Smadja; Carlo Schimd; Zhihong Sun
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Paper Abstract

Understanding the nature of Dark Matter and Dark Energy is one of the most pressing issues in cosmology and fundamental physics. The purpose of the DUNE (Dark UNiverse Explorer) mission is to study these two cosmological components with high precision, using a space-based weak lensing survey as its primary science driver. Weak lensing provides a measure of the distribution of dark matter in the universe and of the impact of dark energy on the growth of structures. DUNE will also include a complementary supernovae survey to measure the expansion history of the universe, thus giving independent additional constraints on dark energy. The baseline concept consists of a 1.2m telescope with a 0.5 square degree optical CCD camera. It is designed to be fast with reduced risks and costs, and to take advantage of the synergy between ground-based and space observations. Stringent requirements for weak lensing systematics were shown to be achievable with the baseline concept. This will allow DUNE to place strong constraints on cosmological parameters, including the equation of state parameter of the dark energy and its evolution from redshift 0 to 1. DUNE is the subject of an ongoing study led by the French Space Agency (CNES), and is being proposed for ESA's Cosmic Vision programme.

Paper Details

Date Published: 14 June 2006
PDF: 12 pages
Proc. SPIE 6265, Space Telescopes and Instrumentation I: Optical, Infrared, and Millimeter, 62651Y (14 June 2006); doi: 10.1117/12.672261
Show Author Affiliations
Alexandre Réfrégier, DAPNIA, CEA Saclay (France)
Olivier Boulade, DAPNIA, CEA Saclay (France)
Yannick Mellier, Institut dAstrophysique de Paris, Univ. Pierre and Marie Curie (France)
Bruno Milliard, Lab. d'Astrophysique de Marseille (France)
Reynald Pain, Lab. de Physique Nucleaire et des Hautes Energies, CNRS, Univ. Paris VI et VII (France)
Joel Michaud, Ctr. National d'Études Spatiales (France)
Frédéric Safa, EADS Astrium (France)
Adam Amara, DAPNIA, CEA Saclay (France)
Pierre Astier, Lab. de Physique Nucleaire et des Hautes Energies, CNRS, Univ. Paris VI et VII (France)
Etienne Barrelet, Lab. de Physique Nucleaire et des Hautes Energies, CNRS, Univ. Paris VI et VII (France)
Emmanuel Bertin, Institut dAstrophysique de Paris, Univ. Pierre and Marie Curie (France)
Sébastien Boulade, EADS Astrium (France)
Christophe Cara, DAPNIA, CEA Saclay (France)
Arnaud Claret, DAPNIA, CEA Saclay (France)
Laurent Georges, EADS Astrium (France)
Robert Grange, Lab. d’Astrophysique de Marseille (France)
Julien Guy, Lab. de Physique Nucleaire et des Hautes Energies, CNRS, Univ. Paris VI et VII (France)
Charles Koeck, EADS Astrium (France)
Laurent Kroely, Lab. de Physique Nucleaire et des Hautes Energies, CNRS, Univ. Paris VI et VII (France)
Christophe Magneville, DAPNIA, CEA Saclay (France)
Nathalie Palanque-Delabrouille, DAPNIA, CEA Saclay (France)
Nicolas Regnault, Lab. de Physique Nucleaire et des Hautes Energies, CNRS, Univ. Paris VI et VII (France)
Gérard Smadja, Institut de Physique Nucleaire de Lyon, CNRS, Univ. Cl. Bernard Lyon 1 (France)
Carlo Schimd, DAPNIA, CEA Saclay (France)
Zhihong Sun, DAPNIA, CEA Saclay (France)


Published in SPIE Proceedings Vol. 6265:
Space Telescopes and Instrumentation I: Optical, Infrared, and Millimeter
John C. Mather; Howard A. MacEwen; Mattheus W. M. de Graauw, Editor(s)

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