Year: 1976
Type: article
Abstract: The background data from the S2/68 ultraviolet telescope on the TD-1 satellite have been analysed. 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. These profiles have been constructed at 2740 and 2350 Å. 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° 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 axi-symmetric model of the Galaxy. On comparison with predictions of the diffuse galactic light from a radiative transfer model it is found that the ratio of the albedos at 2350 and 2740 Å is relatively insensitive to the model used, and is |$0\cdot73\pm0\cdot1$|. The albedo at 2740 Å is found to be |$0\cdot65\pm0\cdot1$| when g is assumed to be 0·75.
Authors: D. H. Morgan, K. Nandy, G. I. Thompson
Institution: Royal Observatory
Language: English
Subfield: Astronomy and Astrophysics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W1975296458