The K-giant population at the South Galactic Pole

CN anomalies and distances from the galactic plane have been derived through DDO photometry for 171 late-type giant and subgiant stars near the South Galactic Pole. The previously found trend of the difference in CN concentration with distance (approximately equal to 0.09/kpc) holds to approximately...

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Bibliographic Details
Published in:The Astronomical journal 1979-09, Vol.84, p.1293-1304
Main Authors: Yoss, K. M., Hartkopf, W. I.
Format: Article
Language:English
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Summary:CN anomalies and distances from the galactic plane have been derived through DDO photometry for 171 late-type giant and subgiant stars near the South Galactic Pole. The previously found trend of the difference in CN concentration with distance (approximately equal to 0.09/kpc) holds to approximately 2 kpc, but at greater distances from the plane the slope becomes approximately zero. The giants beyond 2 kpc are of essentially normal composition or only slightly underabundant in heavier elements.
ISSN:0004-6256
DOI:10.1086/112541