Spectra of the blue CN and CH bands for a CN-enhanced giant in the open cluster IC 4651

Details Spectra of the blue CN and CH bands for a CN-enhanced giant in the open cluster IC 4651 Spectra of the blue CN and CH bands for a CN-enhanced giant in the open cluster IC 4651

Sep 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983aj.....88.1344s&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 88, Sept. 1983, p. 1344-1348.

Other

5

Giant Stars, Globular Clusters, Open Clusters, Spectral Bands, Stellar Spectra, Abundance, Atmospheric Models, Cyanogen, Stellar Evolution, Stellar Spectrophotometry

Scientific paper

Spectra are presented which indicate that the giant IC 4651 23 has enhanced λ4216 CN and λ4300 CH bands relative to other giants with similar temperatures and gravities in this open cluster. Interpretation of the DDO δ CN indices and the CH band observations with the use of model atmospheres and synthetic spectra indicates that only mild (⪉0.1 dex) [C/A] or [N/A] excesses are needed in star 23 to explain the observations.

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