Echelle Spectroscopy. Dr Ray Stathakis, AAO. What is it?. Echelle spectroscopy is used to observe single objects at high spectral detail. The spectrum is mapped as a 2-dimensional array onto the detector, providing large wavelength coverage. How is it done ? 1) The Echelle grating.
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Dr Ray Stathakis, AAO
Useful technical information can be obtained at the AAO web site:
under UCLES and UHRF. See the on-line manual, the S/N calculator and on-line ThAr arc atlas.
Further reading includes: