IGRINS Instrument Information

With the 2.7m Harlan J. Smith Telescope at McDonald Observatory (30° 40' 17.4" N, 104° 01' 21.4" W) 

Wavelength CoverageH: 1.47-1.81μm, K: 1.95-2.48μm
Spectral ResolutionR = λ/Δλ = ~40,000 (1.164x10-5 μm/pixel; 2km/s per pixel)
Resolution Element (3.3 pixels)3.84x10-5 μm ; ~6.6 km/s
Slit Scale1" x 14.8" (8.6 x 124 pixels)
SVC Field of View~187" x 112" (Slit Viewer Field-of-View)
Pixel Scale0.119" per pixel (SVC)

Detectors

2k x 2k Teledyne HgCdTe HAWAII-2RG CMOS

Detector GainH: ~2.05 e-/ADU, K: ~2.21 e-/ADU
Full WellH: ~9.1x104 e-, K: ~105 e-
Minimum Data Taking Time1.63 sec exposure with Fowler number 1
Read NoiseH: ~10.92 e-, K: ~8.93 e-
Estimated Throughput 
  

 

Detector information is based on the results in Jeong et al. (2014) and Park et al. (2014).