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Persistent URL	http://purl.org/net/epubs/work/10788420
Record Status	Checked
Record Id	10788420
Title	Gyes, a multifibre spectrograph for the CFHT
Contributors	P Bonifacio, S Mignot, J Dournaux, P François, E Caffau, F Royer, C Babusiaux, F Arenou, C Balkowski, D Briot, M Cohen, G Fasola, A Gómez, I Guinouard, M Haywood, J Huet, D Katz, D Horville, P Laporte, C Martayan, N Robichon, M Rodrigues, C Turon, Y Viala, O Bienaymé, B Famaey, R Carlberg, G Dalton (Oxford U.), I Lewis, Y Frémat, V Hill, P De Laverny, A Blanco, R Kudritzky, R Lallement, B Lemasle, R Monier, D Mourard, N Nardetto, A Robin, C Soubiran, K Venn
Abstract	We have chosen the name of GYES, one of the mythological giants with one hundred arms, offspring of Gaia and Uranus, for our instrument study of a multifibre spectrograph for the prime focus of the Canada-France-Hawaii Telescope. Such an instrument could provide an excellent ground-based complement for the Gaia mission and a northern complement to the HERMES project on the AAT. The CFHT is well known for providing a stable prime focus environment, with a large field of view, which has hosted several imaging instruments, but has never hosted a multifibre spectrograph. Building upon the experience gained at GÉPI with FLAMES-Giraffe and X-Shooter, we are investigating the feasibility of a high multiplex spectrograph (about 500 fibres) over a field of view one degree in diameter. We are investigating an instrument with resolution in the range 15000 to 30000, which should provide accurate chemical abundances for stars down to 16th magnitude and radial velocities, accurate to 1 kms for fainter stars. The study is led by GÉPI-Observatoire de Paris with a contribution from Oxford for the study of the positioner. The financing for the study comes from INSU CSAA and Observatoire de Paris. The conceptual study will be delivered to CFHT for review by October 1st 2010. © EAS, EDP Sciences 2011.
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Language	English (EN)

Type	Details	URI(s)	Local file(s)	Year
Journal Article	EAS Publications Series 45 (2011): 219-222.	doi:10.1051/eas/1045037		2011