Metallicity of Globular Cluster NGC 5053 from VI CCD Photometry

Details Metallicity of Globular Cluster NGC 5053 from VI CCD Photometry Metallicity of Globular Cluster NGC 5053 from VI CCD Photometry

Jun 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001jass...18....7s&link_type=abstract

Journal of Astronomy and Space Sciences, vol. 18, no. 1, p. 7-14

Astronomy and Astrophysics

Astronomy

1

Photometry, Globular Clusters, Metallicity

Scientific paper

Red giant branch shape and the luminosity of horizontal branch on the (V-I)-V CMD are used to derive the metallcity of the globular cluster NGC 5053. The metallicities of NGC 5053 derived by SMR method ([Fe/H]=-2.62+-0.07) and the relation between [Fe/H] and (V-I)o.g([Fe/H]=-2.50) are in good agreement with previously determined values. This result confirms that the morphologies of RGB and HB on the (V-I)-V CMDs can be good indirect phothmetric metallicity indicators of galactic globular clusters.

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