Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1976
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976mnras.177..531m&link_type=abstract
Monthly Notices of the Royal Astronomical Society, vol. 177, Dec. 1976, p. 531-544.
Astronomy and Astrophysics
Astronomy
47
Background Radiation, Galactic Radiation, Spaceborne Telescopes, Td-1 Satellite, Ultraviolet Radiation, Zodiacal Light, Astronomical Models, Cosmic Ray Albedo, Luminous Intensity, Radiative Transfer, Satellite-Borne Instruments, Statistical Analysis
Scientific paper
Background data from the S2/68 ultraviolet telescope on the TD-I satellite have been analyzed. Using statistical tests, those data contaminated by noise due to charged particles in the atmosphere have been discarded, and the remainder have been arranged to form ultraviolet profiles of the Galaxy at 2740 and 2350 A. The zodiacal-light components of the total radiation field have been separated from the galactic components to give the intensity of the zodiacal light at elongation 90 deg as a function of ecliptic latitude. The spectrum of the zodiacal light in the near-ultraviolet is found to be redder than that of the sun. The intensity of the diffuse galactic light as a function of galactic latitude has been obtained by subtraction of the zodiacal light and contributions due to faint stars calculated using an axisymmetric model of the Galaxy. Comparison with predictions of the diffuse galactic light from a radiative-transfer model indicates that the ratio of the albedos at 2350 and 2740 A is relatively insensitive to the model used and is approximately 0.73.
Morgan David H.
Nandy K.
Thompson G. I.
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