The self-enrichment of globular clusters

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

DOI:https://doi.org/10.1086/167285· OSTI ID:5813092

Morgan, S; Lake, G

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 supernova detonation. If this is the case, the minimum mass of a globular cluster is about 10 to the 4.6th solar mass. 24 refs.

• Research Organization: Washington Univ., Seattle (USA)
• OSTI ID: 5813092
• 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
ABUNDANCE
CHEMICAL COMPOSITION
COSMIC RADIO SOURCES
GRAVITATIONAL COLLAPSE
GRAVITATIONAL FIELDS
LUMINOSITY
MASS
OPTICAL PROPERTIES
PHYSICAL PROPERTIES
PROTOSTARS
STAR CLUSTERS
STAR EVOLUTION
SUPERNOVA REMNANTS