Physics – Optics
Scientific paper
Aug 1998
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998spie.3354..962r&link_type=abstract
Proc. SPIE Vol. 3354, p. 962-972, Infrared Astronomical Instrumentation, Albert M. Fowler; Ed.
Physics
Optics
Scientific paper
To study narrow features in quiescent molecular clouds, a high spectral resolution, high sensitivity instrument is required. We present the design and capabilities of a mid-IR spectrograph being built as a PI instrument for the Stratospheric Observatory for IR Astronomy. The Echelon- Cross-Echelle Spectrograph (EXES) will operate from 5.5-28.5 micrometers in three spectroscopic modes: R approximately 10(superscript 5), 10(superscript 4), and 1500. EXES is similar in concept to our ground based instrument, TEXES. EXES consists of three chambers. The first chamber contains focal-reducing optics. The second chamber houses the high resolution grating, an echelon. Discussion of the echelon can be found elsewhere in this volume. The third chamber contains an echelle grating and a first order grating mounted back-to-back. A flip mirror selects operating mode by either directing light into the echelon chamber or allowing the light to pass through to the grating chamber. Re-imaging optics upstream of the detector provide two plate scales. The detector, a 256 by 256 pixel Si:As IBC, is in a baffled subsection of the third chamber. Finally, the low resolution grating serves as a slit positioning camera when it is rotated face on.
Hemenway Mary Kay M.
Jaffe Daniel T.
Lacy John H.
Richter Matthew Joseph
Yu Wanglong
No associations
LandOfFree
EXES: an echelon cross echelle spectrograph for SOFIA 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 EXES: an echelon cross echelle spectrograph for SOFIA, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and EXES: an echelon cross echelle spectrograph for SOFIA will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1539513