A Fabry-Perot spectrometer for near-infrared astronomical observations

Details A Fabry-Perot spectrometer for near-infrared astronomical observations A Fabry-Perot spectrometer for near-infrared astronomical observations

Oct 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985pasp...97.1020t&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 97, Oct. 1985, p. 1020-1025. Sponsorship: Ministry of E

Computer Science

Performance

8

Astronomical Spectroscopy, Fabry-Perot Spectrometers, Infrared Astronomy, Infrared Spectrometers, Calibrating, Helium-Neon Lasers, Krypton, Mirrors, Performance

Scientific paper

A Fabry-Perot spectrometer has been constructed for velocity-resolved line spectroscopy. It covers wavelengths from 2.0 μm to 2.5 μm. The high effective finesse of 75, which is approximately twice as high as those of other Fabry-Perot spectrometers, has been achieved by monitoring the light from a He-Ne laser with silicon photodetectors. The authors have employed spectral resolutions of 5×103(60 km s-1) and 1.2×104(25 km s-1). Data acquisition and reduction were made with a microcomputer. A Brackett gamma-line profile of LkHα 101 obtained with the spectrometer is shown.

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