Scientific exploitation of the NIR spectrographs EMIR and MIRADAS at the GTC


This project is proposed with two generic objectives.

On the one hand, carry out the initial scientific exploitation of the EMIR and MIRADAS instruments through guaranteed time observation programs that have been prepared ahead of time. In both instruments, the scientific programs of the proposal are framed in the line of the structure and chemo-dynamics of the Galaxy. Both use the multi-object infrared capability of the two instruments to observe the central areas of the Milky Way, obscured by the high density of galactic material and, therefore, inaccessible to optical spectrographs. In some way, it is about complementing the information that is being obtained in other spectral ranges, mostly in the visible one, in projects such as SDSS, Gaia or Lamost, and also in the near infrared with Apogee. Also included in this project is the line of research on galactic structure and dynamics that we carry out in a complementary way to the EMIR and MIRADAS observation programs, in this case taking advantage of the Gaia data.

On the other hand, it is proposed to continue the instrumental work in both spectrographs, which are in different stages in their development, but share many technical and observational aspects.

Related projects
EMIR installed at the Nasmyth A platform of GTC and actually in operationGTC
EMIR - Multi-object Infrared Spectrograph

EMIR is a wide-field camera and intermediate resolution near infrared spectrograph. It is a criogenic multi-object spectrograph installed and in operation in the GTC telescope. A criogenic robotic reconfigurable slit system allows to obtain spectra from up to 50 objects simultaneously.

Garzón López
MIRADAS optical schema
MIRADAS - Mid-resolution InfRAreD Astronomical Spectrograph

MIRADAS is an intermediate resolution infrared spectrograph for the GTC telescope. It will operate in the infrared range of 1 to 2.5 microns with a spectral resolution of 20,000. It is a multi-object spectrograph capable of observing up to 20 objects simultaneously, by means of a robot with 20 arms that can patrol a 5 arcminutes field.

Garzón López