000002858 001__ 2858
000002858 005__ 20160706141447.0
000002858 0247_ $$2DOI$$a10.1117/12.857081
000002858 037__ $$aASTROimport-1015
000002858 100__ $$aBonifacio, P.
000002858 245__ $$aScience with GYES: a multifibre high-resolution spectrograph for the prime focus of the Canada-France-Hawaii Telescope
000002858 260__ $$c2010
000002858 520__ $$aWe present the scientific motivations for GYES: a high multiplex (of the order of several hundred), high resolution (about 20 000), spectrograph to be placed at the prime focus of the CFHT. The main purpose of such an instrument is to conduct a spectroscopic survey complementary to the Gaia mission. The final Gaia catalogue (expected around 2020) will provide accurate distances, proper motions and spectrophotometry for all the stars down to a magnitude of 20. The spectroscopic instrument on board the Gaia satellite will provide intermediate resolution (R=11 500) spectra for stars down to the 17th magnitude. For the fainter stars there will be no radial velocity information. For all the stars the chemical information will be limited to a few species. A multifibre spectrograph at the prime focus of the CFHT will be able to provide the high resolution spectra for stars fainter than 13th magnitude, needed to obtain both accurate radial velocities and detailed chemical abundances. The possible use of GYES will not be limited to Gaia complementary surveys and we here describe the potentialities of such an instrument. We describe here how the scientific drivers are translated into technical requirements. The results of our on-going feasibility study are described in an accompanying poster.
000002858 700__ $$aArenou, F.
000002858 700__ $$aBabusiaux, C.
000002858 700__ $$aBalkowski, C.
000002858 700__ $$aBienaymé, O.
000002858 700__ $$aBriot, D.
000002858 700__ $$aCaffau, E.
000002858 700__ $$aCarlberg, R.
000002858 700__ $$aFamaey, B.
000002858 700__ $$aFrançois, P.
000002858 700__ $$aFrémat, Y.
000002858 700__ $$aGomez, A.
000002858 700__ $$aHaywood, M.
000002858 700__ $$aHill, V.
000002858 700__ $$aKatz, D.
000002858 700__ $$aKudritzky, R.
000002858 700__ $$aLallement, R.
000002858 700__ $$ade Laverny, P.
000002858 700__ $$aLemasle, B.
000002858 700__ $$aMartayan, C.
000002858 700__ $$aMonier, R.
000002858 700__ $$aMourard, D.
000002858 700__ $$aNardetto, N.
000002858 700__ $$aRecio Blanco, A.
000002858 700__ $$aRobichon, N.
000002858 700__ $$aRobin, A. C.
000002858 700__ $$aRodrigues, M.
000002858 700__ $$aRoyer, F.
000002858 700__ $$aSoubiran, C.
000002858 700__ $$aTuron, C.
000002858 700__ $$aVenn, K.
000002858 700__ $$aViala, Y.
000002858 773__ $$c77350E-77350E-9$$pGround-based and Airborne Instrumentation for Astronomy III$$v7735$$y2010
000002858 85642 $$ahttp://esoads.eso.org/abs/2010SPIE.7735E..0EB
000002858 905__ $$apublished in
000002858 980__ $$aNONREF