SpeX: A Medium-Resolution 0.8-5.5 Micron Spectrograph and Imager for the NASA Infrared Telescope Facility

Details SpeX: A Medium-Resolution 0.8-5.5 Micron Spectrograph and Imager for the NASA Infrared Telescope Facility SpeX: A Medium-Resolution 0.8-5.5 Micron Spectrograph and Imager for the NASA Infrared Telescope Facility

Mar 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003pasp..115..362r&link_type=abstract

The Publications of the Astronomical Society of the Pacific, Volume 115, Issue 805, pp. 362-382.

Astronomy and Astrophysics

Astronomy

356

Stars: Hertzsprung-Russell Diagram, Instrumentation: Detectors, Instrumentation: Spectrographs, Stars: Low-Mass, Brown Dwarfs, Stars: Wolf-Rayet

Scientific paper

We present the design, construction, and performance of SpeX, a medium-resolution 0.8-5.5 μm cryogenic spectrograph and imager, now in operation at the 3.0 m NASA Infrared Telescope Facility (IRTF) on Mauna Kea. The design uses prism cross-dispersers and gratings to provide resolving powers up to R~2000 simultaneously across 0.8-2.4, 1.9-4.2, or 2.4-5.5 μm, with a 15" long slit. A high-throughput low-resolution R~200 prism mode is also provided for faint-object and occultation spectroscopy. Single-order 60" long-slit modes with resolving powers up to R~2000 are available for extended objects. The spectrograph employs an Aladdin 3 1024×1024 InSb array and uses narrow slits and a spatial scale of 0.15" pixel-1 for optimum sensitivity on point sources. An autonomous infrared slit viewer is used for object acquisition, infrared guiding, and scientific imaging in the wavelength range 0.8-5.5 μm. The imager employs an Aladdin 2 512×512 InSb array that covers a 60''×60'' field of view at 0.12" pixel-1. SpeX was successfully commissioned on IRTF during 2000 May, June, and July. Astronomical observations are presented to illustrate performance.

Affiliated with

Also associated with

No associations

Rating

SpeX: A Medium-Resolution 0.8-5.5 Micron Spectrograph and Imager for the NASA Infrared Telescope Facility does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with SpeX: A Medium-Resolution 0.8-5.5 Micron Spectrograph and Imager for the NASA Infrared Telescope Facility, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and SpeX: A Medium-Resolution 0.8-5.5 Micron Spectrograph and Imager for the NASA Infrared Telescope Facility will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1168052