An array photometer for air-borne far infrared astronomy

Details An array photometer for air-borne far infrared astronomy An array photometer for air-borne far infrared astronomy

Dec 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985ap%26ss.117..209v&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 117, no. 2, Dec. 1985, p. 209-216. Research supported by the Department of

Astronomy and Astrophysics

Astronomy

1

Astronomical Photometry, Far Infrared Radiation, Infrared Photometry, Photometers, Spaceborne Astronomy, Infrared Spectra, Michelson Interferometers, Venus (Planet), Water Vapor

Scientific paper

The fabrication and performance details of an air-borne far-infrared photometer are reported which is capable of detecting simultaneously in three bands in the 20-120 micron spectral range with arrays of detectors. It is shown that a known point source like a planet could well represent the point-spread function for the telescope photometer system even in the far-IR regime. In order to avoid microphonic noise, a higher chopping frequency should be used. On-line monitoring of the water vapor spectra in the far-IR should be done in order to estimate the atmospheric opacity.

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