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Abundances in dwarf irregular galaxiesThe results of abundance studies of dwarf irregular galaxies and similar objects are reviewed with special attention to variations in the CNO element group. Observations of the forbidden N II and semiforbidden C III lines in the most metal-poor galaxy known, IZw 18, are presented for the first time and CNO abundances are derived via a photoionization model and discussed in the context of the abundances found in other metal-poor H II regions and galaxies.
Document ID
19870038099
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Dufour, Reginald J.
(Rice University Houston, TX, United States)
Date Acquired
August 13, 2013
Publication Date
October 1, 1986
Publication Information
Publication: Astronomical Society of the Pacific, Publications
Volume: 98
ISSN: 0004-6280
Subject Category
Astrophysics
Accession Number
87A25373
Funding Number(s)
CONTRACT_GRANT: NAG5-262
CONTRACT_GRANT: NAG9-123
Distribution Limits
Public
Copyright
Other

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