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Element Abundances in Magellanic Cloud H II Regions from Carbon to Argon1

Published online by Cambridge University Press:  25 May 2016

Donald R. Garnett
Donald R. Garnett*
Affiliation:
Astronomy Dept., University of Minnesota, Minneapolis, MN 55455 Steward Observatory, University of Arizona, Tucson, AZ 8521

Abstract

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I review measurements of heavy element abundances within H II regions in the Magellanic Clouds, highlighting in particular improved determinations of carbon abundances based on UV spectroscopy with Hubble Space Telescope. In general, the Magellanic Cloud H II regions show average underabundances in O, Ne, and S (relative to their Galactic counterparts) that are similar to those measured in Magellanic Cloud stars. However, comparison of stars and ionized gas shows discrepancies in C and N abundances that may be related to recently recognized mixing processes that may be operating in massive stars.

Type
Part 4. Detailed Chemical Abundances
Information
Symposium - International Astronomical Union , Volume 190: New Views of the Magellanic Clouds , 1999 , pp. 266 - 272
Copyright
Copyright © Astronomical Society of the Pacific 1999 

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