An infrared spectrometer for the Anglo-Australian Telescope

Details An infrared spectrometer for the Anglo-Australian Telescope An infrared spectrometer for the Anglo-Australian Telescope

Sep 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988pasp..100.1178b&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 100, Sept. 1988, p. 1178-1185.

Physics

Optics

22

Fabry-Perot Spectrometers, Gratings (Spectra), Infrared Spectrometers, Accuracy, Astronomical Spectroscopy, Geometrical Optics, High Resolution

Scientific paper

A Fabry-Perot IR Grating Spectrometer 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 to the -17th W/sq rt Hz. Examples of astronomical results obtained with the instrument are presented.

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