The Incidence of CN-strong Giants in Globular Clusters

Details The Incidence of CN-strong Giants in Globular Clusters The Incidence of CN-strong Giants in Globular Clusters

Nov 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002pasp..114.1215s&link_type=abstract

The Publications of the Astronomical Society of the Pacific, Volume 114, Issue 801, pp. 1215-1221.

Astronomy and Astrophysics

Astronomy

9

Galaxy: Globular Clusters: General, Stars: Abundances, Stars: Population Ii

Scientific paper

Using a database from the published literature, the fraction of CN-enhanced red giants in globular clusters is correlated against a number of cluster physical properties. Newer data verify the earlier result of Norris that the fraction of CN-strong stars correlates with cluster ellipticity, suggesting that the production of CN enhancements among globular cluster stars is somehow influenced by the angular momentum content of the parent cluster. This correlation with ellipticity appears to be more pronounced than any dependence on cluster mass or metallicity.

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