EXES: The Echelon-Cross-Echelle Spectrograph for SOFIA

Details EXES: The Echelon-Cross-Echelle Spectrograph for SOFIA EXES: The Echelon-Cross-Echelle Spectrograph for SOFIA

Jan 2012

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012aas...21942227d&link_type=abstract

American Astronomical Society, AAS Meeting #219, #422.27

Astronomy and Astrophysics

Astronomy

Scientific paper

The Echelon-cross-Echelle Spectrograph (EXES) is one of the first generation instruments for the Stratospheric Observatory for Infrared Astronomy (SOFIA). It operates at high, medium, and low spectral resolution in the wavelength region 4.5 to 28.3 microns using a 1024x1024 Si:As detector array. From SOFIA, the high spectral resolution mode (R 100,000) will provide truly unique data given the improved atmospheric transmission. We present the current status of EXES including lab results with a new echelle grating, which enables the low resolution mode and a camera mode in addition to the previously available high and medium resolution modes.

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