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An MSX Infrared Analysis of the Superbubble around Giant HII Region NGC3603 (2009)

Abstract
Using the MSX mid-infrared observation, we reveal a 100 pc-scale superbubble surrounding the giant HII region NGC3603. We suggest that the diffuse surrounding infrared emission in bands A, C, and D is dominated by that of PAH and the emission in band E is dominated by that of dust grains. The fitted dust temperature is consistent with the heating by the central cluster's UV photons. The derived gas-to-dust mass ratio for the bubble shell is of order 10^2.. Comment: 3 pages, to appear in "Science in China (Series G)"

Publication details
Download http://arxiv.org/abs/0907.0575
Repository arXiv (United States)
Keywords Astrophysics - Galaxy Astrophysics
Type text