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Gravitational Separation of Elements During Certain Stages of Galactic Evolution

Published online by Cambridge University Press:  12 April 2016

Ewa Basinska-Grzesik
Ewa Basinska-Grzesik*
Affiliation:
Polish Academy of Sciences, Copernicus Astronomical Center Astrophysics Laboratory Toruń, Poland

Extract

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Heavy metal content is, apart from the kinematical behaviour, one of the important parameters of the population characteristics of stars. Spectroscopic observations of some galaxies including our own give the evidence for the gradient of heavy elements abundances towards the galactic center and the galactic plane (Peimbert 1975, Van den Bergh 1975 review papers). Simultaneously several authors (Kuroczkin 1974, Khokhlova 1976) found that the deficiency (or enrichment) increase with the mass number of the element.

Type
Part I: Formation and Evolution of Disc Galaxies
Information
International Astronomical Union Colloquium , Volume 45: Chemical and Dynamical Evolution of our Galaxy , September 1977 , pp. 47 - 52
Copyright
Copyright © Geneva Observatory 1977

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