EMIR


 
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EMIR (Espectrógrafo Multiobjeto Infrarrojo) is a wide-field, near-infrared, multi-object spectrograph proposed for the Nasmyth focus of GTC (Gran Telescopio Canarias). It will allow observers to obtain from tens to hundreds of intermediate resolution spectra simultaneously, in the nIR bands Z, J, H, K. A multi-slit mask unit will be used for target acquisition. EMIR is designed to address the science goals of the proposing team and of the Spanish community at large.

EMIR will provide a robust second-generation instrument for GTC while providing an observing mode unique among 8m class telescopes. EMIR was first proposed by Rafael Guzmán (Yale University Observatory). It will be built by a consortium of Spanish, British and French institutions, led by the Instituto Astrofísico de Canarias (IAC).




EMIR is a collaborative effort of these institutions:

Instituto de Astrofísica de Canarias (IAC) Laboratoire d'Astrophysique - Observatoire Midi-Pyrénées (LAOMP) Universidad Complutense de Madrid (UCM) University of Durham
  • Instituto de Astrofísica de Canarias (IAC).
  • Laboratoire d'Astrophysique - Observatoire Midi-Pyrénées (LAOMP).
  • Universidad Complutense de Madrid (UCM).
  • University of Durham.



  • News and Press Notes

    "GTCdigital" is born, a popularization bulletin that provides lively and updated information about the progress and the state-of-the-art of the Gran Telescopio CANARIAS (GTC). (Information from IAC Press Deparment, 11/10/2002, in Spanish).
    GTC mirrors will be aluminium-coated. (Information from IAC Press Deparment, 19/04/2002, in Spanish).
    More...



    EMIR Description and Specifications

    General Aspects
    Focal Station
    Nasmyth
    Wavelength range
    0.9 - 2.5 microns
    Optimization
    1.0 - 2.5 microns
    Spectral resolution
    4000 for Z, J and H bands; 3500 for K band
    Spectral coverage
    One observing window (Z, J, H and K) per single exposure
    Array format
    Rockwell HgCdTe 2048 x 2048
    Scale at detector
    0.2 arcsec per pixel
    Limiting magnitude
    J=25.5, H = 24.5, K = 23.5 for S/N = 5; t = 4 hours
    OH suppression
    In software
    Cryostat
    Spectrograph temperature
    77 K
    Multi-object Spectroscopy Mode
    Multi-object selection
    Multislit mask interchanger
    FOV
    6 arcmin x 4 arcmin
    Imaging Mode
    FOV
    6 arcmin x 6 arcmin
    Plate scale
    0.2 arcsec per pixel
    Filters
    Bands Z, J, H, K and K'; narrow band filters (to be defined)



    Send suggestions or comments to 'ase' or 'jgm' at this domain: astrax.fis.ucm.es

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    Last modified: November 2002

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