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The strong UV source in the active E Galaxy NGC 45521200-3200 A IUE spectra of the nucleus of NGC 4552 (M89) were obtained in order to investigate the nature of the strong 10 micron source in this Galaxy. There is a strong, extended UV source in NGC 4552 which has a spatial distribution nearly identical with that at optical wavelengths and is undoubedly stellar in origin. Its properties are consistent with the correlation between UV source strength and metallicity pointed out by Faber (1983). There is no evidence for a nonthermal point source in the UV. It appears unlikely that the 10 micron emission is from heated dust grains. Instead, it is believed the 10 micron radiation is nonthermal in origin, implying a remarkably small size of only 0.1 AU for this source.
Document ID
19860051055
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Oconnell, R. W.
(Virginia Univ. Charlottesville, VA, United States)
Thuan, T. X.
(Virginia, University Charlottesville, United States)
Puschell, J. J.
(Titan Systems, Inc. San Diego, CA, United States)
Date Acquired
August 12, 2013
Publication Date
April 15, 1986
Publication Information
Publication: Astrophysical Journal, Part 2 - Letters to the Editor
Volume: 303
ISSN: 0004-637X
Subject Category
Astrophysics
Accession Number
86A35793
Funding Number(s)
CONTRACT_GRANT: NAG5-256
Distribution Limits
Public
Copyright
Other

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