The age of the LMC globular cluster NGC 1783

Journal Article · Sat Apr 01 04:00:00 EST 1989 · Astrophys. J.; (United States)

DOI:https://doi.org/10.1086/167278· OSTI ID:5841938

Mould, J; Kristian, J; Nemec, J; Jensen, J; Aaronson, M

The age of the LMC red globular cluster NGC 1783 is estimated as 0.9 + or - 0.4 billion yr by photometry of the main-sequence turnoff. The accuracy of the estimate is limited chiefly by the uncertainty in the distance modulus of the cluster. At (m - M)0 = 18.2 the cluster is aged 1.1 + or - 0.2 Gyr; at (m - M)0 = 18.7 it is 0.7 + or - 0.2 Gyr. NGC 1783 is a sufficiently rich cluster that one can see the full development of red giants on the asymptotic giant branch from the M type, through S, to carbon-rich atmospheres. 31 refs.

• Research Organization: Palomar Observatory, Pasadena, CA (USA); Mount Wilson and Las Campanas Observatories, Pasadena, CA (USA); California Institute of Technology, Pasadena (USA); British Columbia Univ., Vancouver (Canada)
• OSTI ID: 5841938
• Journal Information: Astrophys. J.; (United States), Journal Name: Astrophys. J.; (United States) Vol. 339; ISSN ASJOA
• Country of Publication: United States
• Language: English

Related Subjects

640102* -- Astrophysics & Cosmology-- Stars & Quasi-Stellar
Radio & X-Ray Sources
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
AGE ESTIMATION
ATMOSPHERES
CARBON STARS
CHEMICAL COMPOSITION
GALAXIES
GIANT STARS
MAGELLANIC CLOUDS
MAIN SEQUENCE STARS
PHOTOMETRY
RED GIANT STARS
STAR CLUSTERS
STAR EVOLUTION
STARS
STELLAR ATMOSPHERES