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The Evolution of the Oxygen Abundance in the Galaxy

Published online by Cambridge University Press:  30 March 2016

Francesca Matteucci  and
Cristina Chiappini
Francesca Matteucci
Affiliation:
Dipartimento di Astronomia, Universita’ di Trieste, Via G.B. Tiepolo 11, 34124 Trieste, Italy
Cristina Chiappini
Affiliation:
Osservatorio Astronomico di Trieste, Via G.B. Tiepolo 11, 34124, Trieste, Italy

Abstract

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We discuss the evolution of the [O/Fe] as a function of [Fe/H] in the Galaxy. In particular, we discuss the influence of different stellar yields as well as different SN (II, I) rates on the [O/Fe] ratio. Possible explanations for the steep rise of the [O/Fe] ratio at low metallicities, as indicated by recent observations, are critically discussed.

Type
II. Joint Discussions
Information
Highlights of Astronomy , Volume 12: Highlights of Astronomy. As presented at the XXIVth General Assembly of the IAU, 2000 , 2002 , pp. 435 - 438
Copyright
Copyright © Astronomical Society of Pacific 2002

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