NIRES Modes and Instrument Properties
NIRES is a fixed configuration instrument with no user-movable parts. Its primary use is as a spectrograph capable of simultaneous J, H, and K band spectra from 0.94 to 2.45 microns, with a small coverage gap between 1.85-1.88 microns. The mean resolution is 2700 through a fixed 0.55" by 18" slit. Although the detector is 2048x2048 pixels, only two quadrants are active, creating a region 2048x1024 pixels.
NIRES is also equipped with a slit viewing camera that covers 2.1x2.1 arcmin in the K' filter (2.123 microns). The plate scale is 0.123" / pixel.
More information can be on the NIRES General Specification page.
Please acknowledge the use of KOA by including this text in your publications:
This research has made use of the Keck Observatory Archive (KOA), which is operated by the W. M. Keck Observatory and the NASA Exoplanet Science Institute (NExScI), under contract with the National Aeronautics and Space Administration.
Please also acknowledge the PI(s) of datasets that have been obtained through KOA, and please contact the KOA Help Desk if you publish archival data.
If your research uses data reduced by the DEIMOS DRP or MOSFIRE DRP, please use the PypeIt Citation.
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The Keck Observatory Archive (KOA) is a collaboration between the NASA Exoplanet Science Institute (NExScI) and the W. M. Keck Observatory (WMKO). NExScI is sponsored by NASA's Exoplanet Exploration Program, and operated by the California Institute of Technology in coordination with the Jet Propulsion Laboratory (JPL).
