The age of the Large Magellanic Cloud globular cluster NGC 1651

Details The age of the Large Magellanic Cloud globular cluster NGC 1651 The age of the Large Magellanic Cloud globular cluster NGC 1651

May 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986apj...304..265m&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 304, May 1, 1986, p. 265-272.

Astronomy and Astrophysics

Astrophysics

21

Globular Clusters, Magellanic Clouds, Main Sequence Stars, Stellar Evolution, Stellar Spectrophotometry, Abundance, Color-Magnitude Diagram, Distance, Tables (Data)

Scientific paper

The age of the LMC red globular cluster NGC 1651 is estimated as 2.0 ± 0.8 x 109 yr by photometry of the main-sequence turnoff. The accuracy of the estimate is limited chiefly by uncertainty in the distance modulus of the cluster. At (m - M)0 = 18.2 the cluster age is 2.5 ± 0.5 Gyr; at (m - M)0 = 18.7 it is 1.6 ± 0.4 Gyr. Here the uncertainties stem from a metallicity estimate of one-third solar abundance and from uncertainties relating to the effects of convective overshooting on stellar evolution.

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