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1 July 1990 Hawaii imaging Fabry-Perot interferometers
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Abstract
The optical design and performance of the visible/NIR imaging Fabry-Perot interferometers for the 3.6-m CFHT, the 2.2-m University of Hawaii Telescope, and the 3.9-m UKIRT (all at Mauna Kea) are described. The basic configuration combines a high-finesse etalon of free spectral range about 10 nm with a state-of-the-art CCD image-plane array. The criteria considered in selecting the CCDs and etalons are discussed; the quality of the data obtainable is illustrated with sample data (CFHT 658.3-nm emission line profiles of the central region of NGC 1068 and UKIRT B-gamma profiles of the Galactic center); and the instrument calibration and artefact problems are outlined. It is suggested that, while Fabry-Perot devices offer the best visible-NIR performance at present, Fourier-transform and long-slit spectroscopy show great promise for the future, especially in the IR.
© (1990) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Jonathan Bland, R. Brent Tully, and Gerald N. Cecil "Hawaii imaging Fabry-Perot interferometers", Proc. SPIE 1235, Instrumentation in Astronomy VII, (1 July 1990); https://doi.org/10.1117/12.19122
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