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EMIR: the GTC NIR multiobject imager-spectrograph

2003; SPIE; Volume: 4841; Linguagem: Inglês

10.1117/12.460972

1996-756X

F. Garzón, Sandra Barrera, Santiago Correa, J. J. Díaz, Ana B. Fragoso-López, F. Javier Fuentes, Fernando Gago, Jose-Carlos Lopez-Ruiz, A. Manescau, J. Patrón, Jaime Perez-Espinos, Vicente Sánchez de la Rosa, Alejandro Villegas, P. Redondo,

Adaptive optics and wavefront sensing

EMIR, currently entering into its fabrication and AIV phase, will be one of the first common user instruments for the GTC, the 10 meter telescope under construction by GRANTECAN at the Roque de los Muchachos Observatory (Canary Islands, Spain).EMIR is being built by a Consortium of Spanish and French institutes led by the Instituto de Astrofísica de Canarias (IAC).EMIR is designed to realize one of the central goals of 10m class telescopes, allowing observers to obtain spectra for large numbers of faint sources in an time-efficient manner.EMIR is primarily designed to be operated as a MOS in the K band, but offers a wide range of observing modes, including imaging and spectroscopy, both long slit and multiobject, in the wavelength range 0.9 to 2.5 µm.It is equipped with two innovative subsystems: a robotic reconfigurable multislit mask and disperssive elements formed by the combination of high quality difracction grating and conventional prisms, both at the heart of the instrument.The present status of development, expected performances, schedule and plans for scientific exploitation are described and discussed.