Astronomy and Astrophysics – Astrophysics
Scientific paper
Apr 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989apj...339..171m&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 339, April 1, 1989, p. 171-177. Research supported by the University of Was
Astronomy and Astrophysics
Astrophysics
58
Abundance, Globular Clusters, Star Formation, Stellar Composition, Supernova Remnants, Gravitational Collapse, Gravitational Fields, Luminosity, Metallicity, Stellar Mass
Scientific paper
It is shown that protoglobular clusters of primordial gas can confine the supernovae needed to enrich themselves. The required protocluster cloud masses and structural parameters are the same as those currently observed for the clusters. Two causal scenarios for star formation are examined to calculate the initial enrichment of primordial clouds. In the 'Christmas tree' scheme, the maximum final (Fe/H) is about 0.1. Since the time scale for formation and evolution of massive stars at the center of a cluster is nearly an order of magnitude less than the collapse time of the cluster, every globular cluster may have to survive a suprernova detonation. If this is the case, the minimum mass of a globular cluster is about 10 to the 4.6th solar mass.
Lake George
Morgan Siobahn
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