Near-IR Giant Branch Slope-Metallicity Relation of Open Clusters

Details Near-IR Giant Branch Slope-Metallicity Relation of Open Clusters Near-IR Giant Branch Slope-Metallicity Relation of Open Clusters

Dec 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001jkas...34..137k&link_type=abstract

Journal of the Korean Astronomical Society, vol. 34, no. 3, pp. 137-141

Astronomy and Astrophysics

Astronomy

2

Giant Branch, Metallicity, Ir Photometry, Open Cluster

Scientific paper

We derive a new relationship between the giant branch slope as measured in the color-magnitude diagram (K, J-K) and [Fe/H] metallicity for old open clusters. Previously such relationships have been derived for globular clusters, while similar tendency has been expected for open clusters. New derived correlation, [Fe/H]=-17.2(+-0.23)GB slope -1.95(+-0.02), is based on a collection of data for 10 old open clusters. Most clusters behave as expected from the theoretical predictions.

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