The TIRGO infrared spectrometer (1-5 micron)

Details The TIRGO infrared spectrometer (1-5 micron) The TIRGO infrared spectrometer (1-5 micron)

Mar 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990a%26a...229..569l&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 229, no. 2, March 1990, p. 569-576.

Physics

Optics

5

Gratings (Spectra), Indium Antimonides, Infrared Astronomy, Infrared Spectrometers, Spectral Bands, Active Galactic Nuclei, Cassegrain Optics, Cryogenic Cooling, Data Acquisition

Scientific paper

The newly installed TIRGO infrared spectrometer is examined. The main features of the design are described, relating the optical, mechanical, and cryogenic designs to the general instrument requirements. The detectors and associated cold electronics are briefly presented, and the control electronics and software are described along with the operating modes. The performance achieved in laboratory tests and the results obtained during the preliminary observing runs are reported. It is shown that the H I emission lines at 2.16 micron and 1.28 micron in a sample of T Tauri stars and a 2.10-2.19 micron spectrum of NGC7027 are shown. Future developemnts are addressed.

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