Physics
Scientific paper
Dec 1976
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976phdt.........7d&link_type=abstract
Ph.D. Thesis Princeton Univ., NJ.
Physics
2
Background Radiation, Extraterrestrial Radiation, Light (Visible Radiation), Airglow, Galaxies, Luminosity, Photometers
Scientific paper
An experiment to measure the intensity of the extragalactic background light at lambda = 5175 A near the galactic polar regions was performed at Kitt Peak National Observatory and at Cerro Tololo Interamerican Observatory. Good data were obtained on six nights in which three fields were observed per night, and five zenith angles were observed per field. The zodiacal light was removed from the data and was used to obtain a map of the zodiacal light in ecliptic coordinates. The zodiacal light map is in good agreement with recent space measurements. The zodiacal light intensity was typically 100 S10 units (n. of 10th magnitude stars/square degree), and could be measured with an accuracy of 10 percent/zenith angle. The zenith airglow intensity was typically 30 plus or minus S10. The intensity of the extragalactic background light at lambda = 5000 A was found to be (0.9 plus or minus 1.3) S10. The results indicate that the mean luminosity density due to galaxies is low, and that there is no evidence for hidden luminous matter, such as dwarf galaxies.
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