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PAHs and the ISM in Metal-Poor Starbursts
Published online by Cambridge University Press: 30 March 2011
Abstract
We characterize PAH populations in 22 metal-poor blue compact dwarf galaxies (BCDs), 16 of which have an oxygen abundance 12+log(O/H) ≲ 8. This is the largest sample ever studied at such low metallicities. The relative PAH intensities of the 6.2, 7.7, 8.6 and 11.3 μm features in these BCDs suggest a deficit of small PAH carriers, or alternatively, an excess of large ones at these low abundances.
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- Research Article
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- © EAS, EDP Sciences 2011
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