EMIR home page
EMIR is a wide-field, near-infrared, multi-object spectrograph proposed for the Nasmyth focus of GTC. 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 de Astrofísica de Canarias.
The EMIR collaboration
EMIR is a collaborative effort of these institutions:
Instituto de Astrofísica de Canarias
Laboratoire d'Astrophysique - Observatoire Midi-Pyrénées
Universidad Complutense de Madrid
Laboratoire d'Astrophysique de MarseilleNews
EMIR Advanced Design Review
The ADR is scheduled in March 2006, days 23-24. The following external reviewers will attend this meeting:
- David Montgomery (UKATC, ROE)
- Walter Seifert (University of Heidelberg)
- Jeff Julian (University of Florida)
This event will be public open to anyone.
Description and Specifications
| 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 |
| Spectrograph temperature | 77 K |
| Multi-object selection | Multislit mask interchanger |
| FOV | 6 arcmin x 4 arcmin |
| 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) |