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Paper: High Ionization in Starburst Galaxies
Volume: 381, The Second Annual Spitzer Science Center Conference: Infrared Diagnostics of Galaxy Evolution
Page: 279
Authors: Devost, D.; Guiles, S.; Whelan, D.G.; Brandl, B.R.; Leitherer, C.; Wu, Y.; Hao, L.; Houck, J.R.
Abstract: We present results on the measurements of the [O IV]λ25.88 μm and [S III]λ33.44 μm lines in a sample of starburst galaxies. We find that even though very few galaxies in our sample are classified as Wolf-Rayet stars, [O IV] is detected in most galaxies. Comparison of the data with models shows that the [O IV]/[S III] line ratio is mainly driven by light of stellar origin.
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