Astronomy and Astrophysics – Astronomy
Scientific paper
Jun 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000spie.4014...54r&link_type=abstract
Proc. SPIE Vol. 4014, p. 54-64, Airborne Telescope Systems, Ramsey K. Melugin; Hans-Peter Roeser; Eds.
Astronomy and Astrophysics
Astronomy
2
Scientific paper
We are developing a high spectral resolution grating spectrograph as a PI instrument for the Stratospheric Observatory for Infrared Astronomy. The Echelon-Cross- Echelle Spectrograph (EXES) will operate at 5.5 - 28.5 micrometers in three spectroscopic modes: R approximately 105, 2 X 104, and 4000. We use an echelon, a coarsely ruled, steeply blazed diffraction grating to achieve high resolution. Cross-dispersion is done with an echelle used at relatively low order. The detector is a 256 X 256 pixel Si:As IBC array. A very similar instrument, the Texas Echelon-Cross-Echelle Spectrograph (TEXES), has had a successful telescope run at the McDonald Observatory. We give here a progress report on the design of EXES and the status of TEXES.
Greathouse Thomas K.
Hemenway Mary Kay M.
Jaffe Daniel T.
Lacy John H.
Richter Matthew Joseph
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