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Ultraviolet imaging of old population in nearby galaxiesWe analyze UV imagery of two Sb bulges and two E galaxies obtained with the Ultraviolet Imaging Telescope during the Astro-1 mission. The UV brightness of these systems is not produced by recent massive star formation. Instead it must originate in relatively low-luminosity objects, probably low-mass, post-giant-branch stars. We find extended, large-amplitude UV color gradients, which are probably related to abundance gradients within the galaxies. M32 has a color gradient opposite to the other three objects, possibly because of an intermediate-age population.
Document ID
19930028543
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
doi:10.1086/186485
Authors
O'Connell, Robert W. (Virginia Univ. Charlottesville, United States)
Bohlin, Ralph C. (Space Telescope Science Inst. Baltimore, MD, United States)
Collins, Nicholas R. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Cornett, Robert H. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Hill, Jesse K. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Hill, Robert S. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Landsman, Wayne B. (Hughes STX Corp. Greenbelt, MD, United States)
Roberts, Morton S. (National Radio Astronomy Observatory Charlottesville, VA, United States)
Smith, Andrew M. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Stecher, Theodore P. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 15, 2013
Publication Date
August 10, 1992
Publication Information
Publication: Astrophysical Journal, Part 2 - Letters
Volume: 395
Issue: 1
ISSN: 0004-637X
Subject Category
Astrophysics
Report/Patent Number
ISSN: 0004-637X
Accession Number
93A12540
Funding Number(s)
CONTRACT_GRANT: NAG5-700
CONTRACT_GRANT: NAGW-2596
Distribution Limits
Public
Copyright
Other

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