Near-IR IFU and Adaptive Optics Imager – GMTIFS


The GMT integral field spectrograph (GMTIFS) builds on the legacy of the NIFS instrument on Gemini. It uses an image slicing micro-mirror system to reformat the focal plane onto the detector. Spaxel scales from 8 to 50mas are provided and all feed an R = 5000 spectrograph that can cover any one of the J, H, or K-bands in a single setting. The instrument also has an imaging channel that will cover the laser tomography AO (LTAO) field while critically sampling the PSF in the J-band.

PI: Rob Sharp (ANU)

Science Goals

Young stars – star and planet formation processes
Nearby galaxies – chemical enrichment history
First galaxies – structure and assembly
Massive black holes – masses and physics of galaxy nuclei
Gamma ray bursts – intergalactic medium at z~7

Technical Specifications

Spectral resolutions: 5,000 and 10,000
Wavelength range: 0.9 – 2.5 μm
Spatial resolution (IFU): 6, 12, 25, or 50 mas
Field of view (IFU): ranging from 0.3”x0.6” to 2.2”x4.5”
Spatial resolution (Imager): 0.005 arcsec/ pix
Field of view (imager): 20.4 x 20.4 arcsec


SPIE Proc 8446-053. McGregor, P.J. et al.