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Superbubble Hii regions: how self-enriched should they be?

Published online by Cambridge University Press:  09 March 2010

Aida Wofford
Aida Wofford*
Affiliation:
Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218 email: wofford@stsci.edu
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Abstract

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I modeled the pollution of low metallicity (Z=0.001) superbubble Hii regions with the ejecta from single stellar populations of 104−106M⊙ in mass. I found that the He, C, N, and O abundance enhancements in the Hii regions, due to pollution with the enriched winds from Wolf-Rayet stars, are insignificant at 5Myr. The few localized metal enhancements observed so far in resolved extragalactic Hii regions are not associated with superbubbles and remain to be modeled in detail.

Keywords

ISM: abundancesISM: bubblesISM: evolutionHii regions
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 5 , Symposium S265: Chemical Abundances in the Universe: Connecting First Stars to Planets , August 2009 , pp. 386 - 387
Copyright
Copyright © International Astronomical Union 2010

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