Globular cluster evolution in the Galaxy - A global view
1987; IOP Publishing; Volume: 322; Linguagem: Inglês
10.1086/165708
ISSN1538-4357
AutoresDavid F. Chernoff, Stuart L. Shapiro,
Tópico(s)Astro and Planetary Science
Resumoview Abstract Citations (78) References (27) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Globular Cluster Evolution in the Galaxy: A Global View Chernoff, David F. ; Shapiro, Stuart L. Abstract Schematic evolutionary calculations of globular clusters are reported which incorporate relaxation, mass loss across a tidal boundary, heating and mass loss following orbital passage through the Galactic disk, and mass loss by stellar evolution. The cluster evolution to core collapse or tidal disruption is traced using a three-parameter sequence of King models. The results suggest that if globular clusters are born tidally limited in a single burst of star formation with a Salpeter initial mass function, then only the most concentrated clusters survive the initial phase of mass loss. For surviving clusters, the evolutionary trends are as follows: low mass clusters collapse before a Hubble time, moderate mass clusters near the Galactic center complete core collapse, and high-mass clusters are in the process of collapsing near the Galactic center. Publication: The Astrophysical Journal Pub Date: November 1987 DOI: 10.1086/165708 Bibcode: 1987ApJ...322..113C Keywords: Astronomical Models; Globular Clusters; Milky Way Galaxy; Stellar Evolution; Stellar Motions; Boundary Value Problems; Galactic Nuclei; Gravitational Collapse; Stellar Mass Ejection; Astrophysics; CLUSTERS: GLOBULAR; STARS: EVOLUTION; STARS: STELLAR DYNAMICS full text sources ADS |
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