Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994aas...185.1008r&link_type=abstract
American Astronomical Society, 185th AAS Meeting, #10.08; Bulletin of the American Astronomical Society, Vol. 26, p.1322
Astronomy and Astrophysics
Astronomy
Scientific paper
We present designs for echelle spectrographs for 6.5 m telescopes. While generally along the lines of Vogt's HIRES at the Nasmyth focus of the Keck I telescope, we incorporate fused silica prism cross dispersion for higher transmission, and use cameras that record simultaneously full 300 - 1100 nm wavelength range of CCD detectors. Six detectors are placed tangent to the focal sphere of a Schmidt camera. Each has its own thin field flattener. In this way excellent image quality is maintained while the obscuration by the detector array is minimal, even though it is big enough to cover the entire cross dispersed spectrum. Each back-illuminated CCD is dedicated to a limited spectral range, and can be given appropriately optimized coatings for highest efficiency. Designs for 20 and 30 cm beams have been produced, both using 60 cm Schmidt plates and achieve resolving power slit width products of 50,000 arcsec. The 2048 square CCDs yield spectral resolution sampling of 200,000/pixel. The "point and shoot" character of the spectrograph should result in simplified controls and software.
Angel James Roger P.
Ryan Patrick
No associations
LandOfFree
Design of an echelle spectrograph without knobs 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 Design of an echelle spectrograph without knobs, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Design of an echelle spectrograph without knobs will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1318544