Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984spie..445..535a&link_type=abstract
Instrumentation in astronomy V, p. 535 - 542
Astronomy and Astrophysics
Astronomy
1
Spectrometers
Scientific paper
There are three basic types of spectrometer in general use in the visible, based on diffraction gratings, and Fabry-Perot and Michelson interferometers. In the first part of this paper the author compares these three types of imaging spectrometer in terms of their ability to obtain both spectral and spatial information, and discusses practical limitations. The second part describes the new Imaging Fabry Perot being designed for the 4.2 m on La Palma. The final section deals with the conditions under which optimum use is made of the different devices.
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