Globular clusters

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Jun 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985sciam.252...78k&link_type=abstract

Scientific American (ISSN 0036-8733), vol. 252, June 1985, p. 78-82, 84, 86, 88.

Mathematics

Logic

2

Galactic Structure, Globular Clusters, Binary Stars, Cosmology, Hertzsprung-Russell Diagram, Metallicity, Milky Way Galaxy

Scientific paper

The characteristics of Galactic globular clusters and their implications for the structure and evolution of the Galaxy are discussed in general review and illustrated with photographs, diagrams, and drawings. Topics examined include current models of Galactic structure (with disk radius 15 kpc and halo radius up to 100 kpc), stellar populations, the complex populations of different types of globular clusters, cosmological explanations for the heavy-element abundances of cluster stars, cluster formation, dynamical evolution, and the role of binary stars in halting core collapse. The potential value of Space Telescope observations in exploring the central regions of globular clusters is indicated.

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