GYES, a multifibre spectrograph for the CFHT
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 GEPI with FLAMES-Giraffe and X-Shooter, we are investigating the feasibility of a high multiplex spectrograph (about 500 fibres) over a field of view 1 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 km/s for fainter stars. The study is led by GEPI-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.
Cite
@article{arxiv.1009.3644,
title = {GYES, a multifibre spectrograph for the CFHT},
author = {P. Bonifacio and S. Mignot and J. -L. Dournaux and P. François and E. Caffau and F. Royer and C. Babusiaux and F. Arenou and C. Balkowski and O. Bienaymé and D. Briot and R. Carlberg and M. Cohen and G. B. Dalton and B. Famaey and G. Fasola and Y. Frémat and A. Gómez and M. Haywood and V. Hill and J. -M. Huet and D. Katz and D. Horville and R. Kudritzky and R. Lallement and Ph. Laporte and P. de Laverny and B. Lemasle and I. J. Lewis and C. Martayan and R. Monier and D. Mourard and N. Nardetto and . A. Recio Blanco and N. Robichon and A. C. Robin and M. Rodrigues and C. Soubiran and C. Turon and K. Venn and Y. Viala},
journal= {arXiv preprint arXiv:1009.3644},
year = {2015}
}
Comments
Contributed talk at the Gaia ELSA conference 2010, S\`evres 7-11 June 2010, to be published on the EAS Series, Editors: C. Turon, F. Arenou & F. Meynadier