The age and composition of the LMC red globular cluster NGC 2121

Details The age and composition of the LMC red globular cluster NGC 2121 The age and composition of the LMC red globular cluster NGC 2121

Dec 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983apj...275...15f&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 275, Dec. 1, 1983, p. 15, 16, 21-34.

Astronomy and Astrophysics

Astrophysics

28

Abundance, Globular Clusters, Magellanic Clouds, Stellar Color, Stellar Evolution, Stellar Magnitude, Astronomical Maps, Cepheid Variables, Color-Magnitude Diagram, Giant Stars, Interstellar Extinction, Iron, M Stars, Main Sequence Stars, Ubv Spectra

Scientific paper

A color-magnitude diagram for the Large Magellanic Cloud red globular cluster NGC 2121 to V = 21 shows a conspicuous main sequence and a well-populated giant region. The main sequence turnoff morphology indicates an age of only ≡0.4 billion years, and the faintest giants, when fitted to a set of evolutionary models calculated for this purpose, give a similar result. A value of [Fe/H] of -1.3±0.4 is obtained from the colors and magnitudes on the giant branch.

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