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Abundances from z=0 to z=5

Published online by Cambridge University Press:  19 July 2016

Donald G. York
Donald G. York*
Affiliation:
The University of Chicago Department of Astronomy & Astrophysics 5640 S. Ellis Avenue Chicago, IL 60637 USA

Abstract

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Interstellar abundances are compared for the Milky Way disk, the Milky Way halo, the Large and Small Magellanic Clouds and the damped Lyman alpha systems among the QSO absorption line systems. While a new set of observational aspects of element formation in the Universe is emerging, including a dearth of formation activity from z=5 to z=3, the predicted signal of [Si/Fe] decreasing from high z to low z, as Type I supernovae start contributing to Fe production, has not yet been seen.

Type
Conference Papers in order of Presentation
Information
Symposium - International Astronomical Union , Volume 187: Cosmic Chemical Evolution , 2002 , pp. 109 - 115
Copyright
Copyright © 2002 

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