IGRINS-2

Gemini NorthNear-IR

Last Modified:

Thursday, August 29, 2024 - 13:27

The Immersion GRating INfrared Spectrograph 2 (IGRINS-2) is a high-resolution (R~45,000) near-infrared spectrograph covering the wavelength range of 1.49-1.80μm (H-band) and 1.96-2.46μm (K-band) in a single exposure.

Available For Proposals at Gemini North
For more details, see the schedules and the CfPs.

IGRINS-2 is currently in the final stages of acceptance as a facility instrument at Gemini North. IGRINS-2 is anticipated to be available for science in shared-risk mode in 2025A.

Capability Summary

Spectroscopy

Resolution
- R~45,000
Modes
- Single slit with size: 0.33ʺ x 5ʺ
- Total wavelength range: 1.49 - 2.46 µm in one exposure [split between 1.49-1.80µm (H-band) and 1.96-2.46µm (K-band)]
Sensitivity
- Commissioning data show that a S/N of ~100 is achievable in a 3600 sec exposure for point sources with a K-band of 14.5 mag.

Guiding Options (Read more)

PWFS2
Possibility of including on instrument Slow Guiding using the Slit Viewing Camera

Get to the Integration Time Calculator

The Immersion GRating INfrared Spectrograph 2 (IGRINS-2) is a compact high-resolution near-IR spectrograph installed in the Cassegrain focus of the Gemini North telescope. The instrument, which concept was based on the original IGRINS design, has been developed and built by a collaboration between Korea Astronomy and Space Science Institute (KASI) and the International Gemini Observatory. It makes use of a silicon immersion grating as the main disperser and two VPH gratings as cross-dispersers. The instrument covers all of the H and K bands simultaneously with a resolving power of R ~ 45,000 and a single 3-pixel slit. The First light was achieved in October 2023 and commissioning was completed in April 2024.