On the color indices of giants and subgiants in globular clusters

Details On the color indices of giants and subgiants in globular clusters On the color indices of giants and subgiants in globular clusters

Aug 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975pasp...87..559b&link_type=abstract

Astronomical Society of the Pacific, Publications, vol. 87, Aug. 1975, p. 559, 560.

Astronomy and Astrophysics

Astronomy

37

Abundance, Color, Giant Stars, Globular Clusters, Luminous Intensity, Cepheid Variables, Color-Magnitude Diagram, Interstellar Extinction, Iron, Metallic Stars, Stellar Luminosity, Ubv Spectra

Scientific paper

The globular-cluster metal-abundance parameter, which is the intrinsic
color index at the intersection of the horizontal and subgiant branch in
the color-magnitude diagram, is shown to be tightly correlated with the
concentration ratio of Fe/H.

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