Inhomogeneous halo collapse and early Galactic chemical evolution - Globular cluster metallicities

Journal Article · Thu Aug 01 00:00:00 EDT 1991 · Astrophysical Journal; (United States)

DOI:https://doi.org/10.1086/170301· OSTI ID:5183350

Malinie, G; Hartmann, D H; Mathews, G J ^[1]

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1. Lawrence Livermore National Laboratory, Livermore, CA (United States)

A new solution to the observed Galactic globular cluster metallicity distribution is proposed by considering inhomogeneous collapse of a centrally condensed proto-Galaxy. In contrast to the standard one-zone model, it is shown that, for inhomogeneous models, the metallicity distribution can be reproduced without the need to decrease the nucleosynthetic yield for metal-poor stars. Chemical evolution in free fall is calculated analytically. A hybrid hydroparticle code is developed to study the effect of supernova induced pressure. 62 refs.

• OSTI ID: 5183350
• Journal Information: Astrophysical Journal; (United States), Vol. 376; ISSN 0004-637X
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
MILKY WAY
GALACTIC EVOLUTION
CHEMICAL COMPOSITION
GRAVITATIONAL COLLAPSE
MATHEMATICAL MODELS
NUCLEOSYNTHESIS
STAR CLUSTERS
SUPERNOVAE
ERUPTIVE VARIABLE STARS
GALAXIES
STARS
SYNTHESIS
VARIABLE STARS
640105* - Astrophysics & Cosmology- Galaxies