Astronomy and Astrophysics – Astrophysics
Scientific paper
Sep 1979
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979apj...232..333d&link_type=abstract
Astrophysical Journal, Part 1, vol. 232, Sept. 1, 1979, p. 333-340. NSF-supported research.
Astronomy and Astrophysics
Astrophysics
73
Background Radiation, Extraterrestrial Radiation, Galactic Evolution, Light (Visible Radiation), Airglow, Astronomical Photometry, Cosmology, Focal Plane Devices, Fraunhofer Lines, Sky Brightness, Zodiacal Light
Scientific paper
An experiment to determine the brightness of the extragalactic background light at 5115 A is described. The separate contributions to the night sky brightness from several sources are eliminated or measured independently. Light from discrete sources (stars and resolved galaxies) is blocked from the photometer by a telescope focal-plane mask; the zodiacal light is measured using its Fraunhofer spectrum; airglow and atmospheric scattered light are determined by their zenith-angle dependence. The remaining sky brightness of 1.0 + or - 1.2 S(10) is attributed to the extragalactic background light plus a possible diffuse galactic component. An attempt to detect the latter by analysis of the galactic-latitude dependence of the sky brightness was inconclusive, so the result may be interpreted only as an upper limit on the extragalactic light of 3.4 S(10) at the 90% confidence level.
Dube Rakesh
Wickes William C.
Wilkinson David T.
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