The cyanogen distribution of the giants in NGC 2808

Details The cyanogen distribution of the giants in NGC 2808 The cyanogen distribution of the giants in NGC 2808

Dec 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983apj...275..120n&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 275, Dec. 1, 1983, p. 120-124.

Astronomy and Astrophysics

Astrophysics

18

Cosmochemistry, Cyanogen, Globular Clusters, Horizontal Branch Stars, Red Giant Stars, Abundance, Astronomical Photometry

Scientific paper

The authors report panoramic photometry of the strength of the λ3883 cyanogen band in the spectra of red giants in NGC 2808, in the magnitude range -0.5 < MV < 1.5. There is a range in band strength at all magnitudes surveyed, but the CN distribution shows little or no evidence for the type of bimodality predicted by Norris on the hypothesis that there is a connection between horizontal-branch morphology and the form of the CN distribution on the red giant branch.

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