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16 November 1982European Southern Observatory (ESO) Coude Echelle Spectrometer
A powerful high resolution spectrometer has been developed, and is installed at the Coude Focus of ESO's 3.6 m telescope. It can also be fed by a 1.4 m auxiliary telescope dedicated to the instrument. With this latter telescope magnitude 10 stars can be observed at a resolving power of 100.000 and with a good instrumental profile. The CES also features a single channel scanner mode which can attain a resolving power of 300.000 with an extremely high spectral purity.
Daniel Enard
"European Southern Observatory (ESO) Coude Echelle Spectrometer", Proc. SPIE 0331, Instrumentation in Astronomy IV, (16 November 1982); https://doi.org/10.1117/12.933460
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Daniel Enard, "European Southern Observatory (ESO) Coude Echelle Spectrometer," Proc. SPIE 0331, Instrumentation in Astronomy IV, (16 November 1982); https://doi.org/10.1117/12.933460