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Chemical Inhomogeneities in Galaxies

Published online by Cambridge University Press:  12 April 2016

M. G. Edmunds
M. G. Edmunds*
Affiliation:
Department of Applied Mathematics and Astronomy, University College, P.O. Box 78, Cardiff CF1 1XL

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The local chemical inhomogneity of the interstellar medium at a given time is an important factor in models of galactic chemical evolution. It can affect both the G-dwarf metallicity problem (Tinsley 1975, Talbot and Arnett 1973) and the correlation of the abundances of different elements (Tinsley 1976). Observational evidence of abundance gradients in our own Galaxy, and some other galaxies (summarised by Peimbert 1975, van den Bergh 1975), implies that in homogeneities over a large length scale must be created and survive during galactic evolution. Brief consideration of the mixing of the Galactic disk (e.g. Edmunds 1975, 1976) suggests

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. 67 - 71
Copyright
Copyright © Geneva Observatory 1977

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