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Upper limits to the interstellar radiation field between 775 and 1050 AA 40-A resolution extreme-ultraviolet spectrometer, sensitive to radiation in the 775-1050 A band, was flown on a Black Brant VC rocket to measure the night sky brightness in this region of the electromagnetic spectrum. A weak signal above background was recorded in most channels as the spectrometer's field of view scanned the sky in the vicinity of the galactic plane from Monoceros to Andromeda. Because the earth's upper atmosphere may produce some radiation in this wavelength region, the possibility cannot be excluded that some or all of the observed signal is terrestrial in origin. However, observational upper limits can be established at the 95-per cent confidence level for the intensity of an extraterrestrial extreme ultraviolet background which ranges from 6 millionths erg/sq cm/s/sr/A at 1050 A to 4 ten-millionths erg/sq cm/s/sr/A at 775 A. These results are consistent with existing theoretical predictions.
Document ID
19760057123
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Paresce, F.
(California Univ. Berkeley, CA, United States)
Bowyer, S.
(California, University Berkeley, Calif., United States)
Date Acquired
August 8, 2013
Publication Date
July 15, 1976
Publication Information
Publication: Astrophysical Journal
Volume: 207
Subject Category
Space Radiation
Accession Number
76A40089
Funding Number(s)
CONTRACT_GRANT: NGR-05-003-450
Distribution Limits
Public
Copyright
Other

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