Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991aesr.nasa..123h&link_type=abstract
In its Aerospace Sponsored Research p 123-125 (SEE N93-18459 06-99)
Astronomy and Astrophysics
Astronomy
Background Radiation, Celestial Bodies, Gas Density, Infrared Astronomy Satellite, Infrared Detectors, Infrared Spectra, Star Formation, Calibrating, Dust, Infrared Radiation, Light (Visible Radiation), Physical Factors
Scientific paper
Infrared light can penetrate the dense clouds of gas and dust that are present in the galactic plane; consequently, the appearance of the infrared sky is significantly different from that at visible wavelengths. Visible-light measurements are therefore useless for predicting the appearance of the infrared sky with any fidelity. Thus, space surveillance programs requiring knowledge of the infrared celestial background need direct infrared measurements at the wavelengths of interest. The purpose of this project is to identify the structure of the infrared sky at a wide range of spatial scales. Our work has concentrated on producing two new sources of information: measurements made at higher spatial resolutions than is possible with data from the Infrared Astronomical Satellite (IRAS); and information at spatial scales that is not available in previously published maps. The goal of this multiyear effort was to ascertain the physical phenomena that produce the spatial and spectral structure seen in the infrared sky. This information can then be used to predict the background that might be seen by a given infrared sensor that is attempting to locate targets against the infrared sky or to see celestial objects for calibration.
Friesen L. M.
Hackwell John A.
Lynch David K.
Russell Ray W.
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