Some implications for the early chemical and dynamical evolution of the large magellanic cloud from observations of the oldest globular clusters

Journal Article · Sun Aug 01 04:00:00 EDT 1982 · Astrophys. J.; (United States)

DOI:https://doi.org/10.1086/160149· OSTI ID:6866079

Cowley, A P; Hartwick, F D.A.

Observations of giant stars in the oldest Large Magellanic Cloud (LMC) globular clusters were used to deduce metal abundances and radial velocities for the clusters. From the distribution of metallicities, radial velocities, position in the sky, position in the two-color diagram, color-magnitude diagram morphology, and distribution of ellipticities, we argue that these clusters make up a different dynamical component from the young disk (i.e., halo). Based on this conclusion, we present a tentative scenario for the early chemical and dynamical evolution of the LMC. Subject headings: clusters: globular: galaxies: Magellanic Clouds: galaxies: stellar content: stars; abundances: stars: evolution

• Research Organization: Dominion Astrophysical Observatory and University of Michigan
• OSTI ID: 6866079
• Journal Information: Astrophys. J.; (United States), Journal Name: Astrophys. J.; (United States) Vol. 259:1; 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
ABUNDANCE
CHEMICAL COMPOSITION
DISTRIBUTION
GALACTIC EVOLUTION
GALAXIES
GIANT STARS
MAGELLANIC CLOUDS
PHOTOMETRY
RADIAL VELOCITY
SPATIAL DISTRIBUTION
STAR CLUSTERS
STAR EVOLUTION
STARS
VELOCITY