An infrared spectrometer for the Anglo-Australian Telescope
Open Access
- 1 September 1988
- journal article
- research article
- Published by IOP Publishing in Publications of the Astronomical Society of the Pacific
- Vol. 100 (631) , 1178
- https://doi.org/10.1086/132286
Abstract
A Fabry-Perot Infrared Grating Spectrometer (FIGS) has been built for use on the 3.9-m Anglo-Australian Telescope. This instrument consists of a totally cooled grating spectrometer employing cylindrical optics which achieves resolutions up to R = 2000 with a very compact design. The detector is a 16-element InSb array using discrete integrating preamplifiers to achieve very low noise. A mean readout noise of 124 electrons is achieved at a 1-second integration time, and the NEP at 2.2 microns for integration times of a few seconds is 1.8 x 10-17^ W Hz-1/2^. Examples of astronomical results obtained with the instrument are presented.Keywords
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