MOSFIRE Modes and Instrument Properties
Modes
MOSFIRE has two basic modes:
- Near-IR imaging
- Near-IR spectroscopy
Table 1 provides a summary of these modes, options, and features of MOSFIRE.
| Mode | Characteristics |
|---|---|
| Imaging | 6.1'x6.1' FOV with vignetted corners; 0.1798"/pixel, 0.97-2.4 microns |
| Spectroscopy | 6.1'x3' FOV; variable length and width slits; R~3000 |
Instrument Properties
Table 2 gives a summary of MOSFIRE's properties and design parameters. For more details, see MOSFIRE Instrument and Data Format
| Property | Value |
|---|---|
| Input f/ ratio | f/15N |
| Wavelength range | 0.9-5.3 microns |
| Field of view | 6.14 x 6.14 arcmin (imaging); 6.14 x 3 arcmin spectroscopy |
| Pixel scale | 0.1798 arcsec/pixel |
| Filters | Y, J, H, K, Ks, J2, J3, H1, H2 |
| Slits | Cryogenic Configurable Slit Unit (CSU): ~45 remotely configurable slits each 7.3" long; configurable as a smaller number of longer slits. Each slit width can be adjusted arbitrarily. |
| Minimum frame time | 1.455 sec |
| Detector | 2048x2048 Teledyne Hawaii-2RG HgCdTe gain = 2.15 electrons/ADU |
| Read noise |
|
| Dark current | < 0.008 electrons/pixel/sec |
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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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