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21 September 2012 Euclid: ESA's mission to map the geometry of the dark universe
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Abstract
Euclid is a space-borne survey mission developed and operated by ESA. It is designed to understand the origin of the Universe's accelerating expansion. Euclid will use cosmological probes to investigate the nature of dark energy, dark matter and gravity by tracking their observational signatures on the geometry of the Universe and on the history of structure formation. The mission is optimised for the measurement of two independent cosmological probes: weak gravitational lensing and galaxy clustering. The payload consists of a 1.2 m Korsch telescope designed to provide a large field of view. The light is directed to two instruments provided by the Euclid Consortium: a visual imager (VIS) and a near-infrared spectrometer-photometer (NISP). Both instruments cover a large common field of view of 0.54 deg2, to be able to survey at least 15,000 deg2 for a nominal mission of 6 years. An overview of the mission will be presented: the scientific objectives, payload, satellite, and science operations. We report on the status of the Euclid mission with a foreseen launch in 2019.
© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
R. Laureijs, P. Gondoin, L. Duvet, G. Saavedra Criado, J. Hoar, J. Amiaux, J.-L. Auguères, R. Cole, M. Cropper, A. Ealet, P. Ferruit, I. Escudero Sanz, K. Jahnke, R. Kohley, T. Maciaszek, Y. Mellier, T. Oosterbroek, F. Pasian, M. Sauvage, R. Scaramella, M. Sirianni, and L. Valenziano "Euclid: ESA's mission to map the geometry of the dark universe", Proc. SPIE 8442, Space Telescopes and Instrumentation 2012: Optical, Infrared, and Millimeter Wave, 84420T (21 September 2012); https://doi.org/10.1117/12.926496
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