NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Observations of the diffuse near-UV radiation fieldThe diffuse radiation field from 1650-3100 A has been observed by spectrometer aboard the Space Shuttle, and the contributions of the zodiacal light an the diffuse cosmic background to the signal have been derived. Colors ranging from 0.65 to 1.2 are found for the zodiacal light with an almost linear increase in the color with ecliptic latitude. This rise in color is due to UV brightness remaining almost constant while the visible brightnesses drop by almost a factor of two. This is interpreted as evidence that the grains responsible for the UV scattering have much more uniform distribution with distance from the ecliptic plane than do those grains responsible for the visible scattering. Intensities for the cosmic diffuse background ranging from 300 units to 900 units are found which are not consistent with either a correlation with N(H I) or with spatial isotropy.
Document ID
19900064715
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Murthy, J.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Henry, R. C.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Feldman, P. D.
(Johns Hopkins University Baltimore, MD, United States)
Tennyson, P. D.
(MIT Lexington, MA, United States)
Date Acquired
August 14, 2013
Publication Date
May 1, 1990
Publication Information
Publication: Astronomy and Astrophysics
Volume: 231
Issue: 1 Ma
ISSN: 0004-6361
Subject Category
Space Radiation
Accession Number
90A51770
Funding Number(s)
CONTRACT_GRANT: NAG5-619
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available