Astronomical Fourier spectrometer

Details Astronomical Fourier spectrometer Astronomical Fourier spectrometer

Sep 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975apopt..14.2067c&link_type=abstract

Applied Optics, vol. 14, Sept. 1975, p. 2067- 2084.

Astronomy and Astrophysics

Astronomy

44

Astronomical Spectroscopy, Infrared Interferometers, Infrared Spectrometers, Design Analysis, Fourier Analysis, Infrared Astronomy, Near Infrared Radiation, Optical Paths, Planetary Atmospheres, Servocontrol

Scientific paper

A high resolution near-IR Fourier spectrometer with the same general design as previously described laboratory instruments has been built for astronomical observations at a Coude focus. Present spectral range is 0.8-3.5 microns with PbS and Ge detectors and maximum path difference 1 m. The servo system can accommodate various recording modes: stepping or continuous scan, path difference modulation, sky chopping. A real time computer is incorporated into the system, which has been set up at the Hale 500-cm telescope on Mount Palomar. Samples of the results are given.

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