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Rocket observations of the diffuse ultraviolet backgroundThe objective of the experiment reported here was to obtain additional information on the absolute intensity level and spatial variation of the diffuse ultraviolet background and thereby gain insight into the origin of this radiation. The experiment used three ultraviolet sensitive photometers placed in the focal plane of a 95-cm, f/2.8 normal incidence telescope flown on board an Aries sounding rocket. The measured intensities clearly refute the hypothesis of an isotropic background, the intensities of the high galactic latitude being definitely lower than the intensities seen at intermediate latitudes. Moreover, the count rates in all three channels along the slow scan exhibit local enhancements as well as an overall trend. In general, the spatial variations exhibited by the data correlate with the line of sight of neutral hydrogen column density as determined from 21-cm radio observations. This fact demonstrates that there is a galactic component to the diffuse ultraviolet radiation field.
Document ID
19850031933
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Jakobsen, P.
(California, University Berkeley, CA; Universitetes Astronomiske Observatorium, Copenhagen, Denmark)
Bowyer, S.
(California, University Berkeley, CA; Tuebingen, Universitaet, Tuebingen, Germany)
Kimble, R.
(California Univ. Berkeley, CA, United States)
Jelinsky, P.
(California, University Berkeley, CA, United States)
Grewing, M.
(California Univ. Berkeley, CA, United States)
Kraemer, G.
(California Univ. Berkeley, CA, United States)
Wulf-Mathies, C.
(Tuebingen, Universitaet Tuebingen, Germany)
Date Acquired
August 12, 2013
Publication Date
October 1, 1984
Publication Information
Publication: Astronomy and Astrophysics
Volume: 139
Issue: 2 c
ISSN: 0004-6361
Subject Category
Astrophysics
Accession Number
85A14084
Funding Number(s)
CONTRACT_GRANT: NGR-05-003-450
Distribution Limits
Public
Copyright
Other

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