Published July 6, 2018
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NIHTS: the near-infrared high throughput spectrograph for the Discovery Channel Telescope
Abstract
NIHTS is a first-generation instrument now in use on Lowell Observatory's Discovery Channel Telescope. It is a nearinfrared prism spectrograph of the BASS design featuring high throughput and low dispersion that is intended for observations of faint solar system and astrophysical objects over the YJHK spectral range. An unusual feature is its ability to observe simultaneously with the Large Monolithic Imager, an optical CCD camera, by means of a dichroic fold mirror. This is particularly valuable for time-variable targets such as Kuiper Belt Objects, asteroids, exoplanet transits, and brown dwarfs. We describe its design details and performance both in the lab and on the telescope.
Additional Information
© 2018 Society of Photo-Optical Instrumentation Engineers (SPIE). This work was supported by NASA Grant NNX09AB54G. The Mount Cuba foundation supported the dichroic beamsplitter coatings. We would like to thank James French, Charlie Burge, Liam Andrus, Steve Lauman, Jeff Gehring, and Glenn Hill for their contributions in the mechanical area, Saeid Zoonemat Kermani, Dyer Lytle, Len Bright, and the late Peter Collins for theirs in the software area, Rich Oliver for his help with the electronics, and Mike Cushing for his effort in adapting Spextool for NIHTS.Attached Files
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Additional details
- Eprint ID
- 92056
- Resolver ID
- CaltechAUTHORS:20190103-153504302
- NNX09AB54G
- NASA
- Created
-
2019-01-08Created from EPrint's datestamp field
- Updated
-
2021-11-16Created from EPrint's last_modified field
- Caltech groups
- Thirty Meter Telescope
- Series Name
- Proceedings of SPIE
- Series Volume or Issue Number
- 10702