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

Details An MSX Infrared Analysis of the Superbubble around the Giant HII Region NGC3603 An MSX Infrared Analysis of the Superbubble around the Giant HII Region NGC3603

2009-07-03

arxiv.org/abs/0907.0575v5

Sci.China G53:271-273,2010

Astronomy and Astrophysics

Astrophysics

Galaxy Astrophysics

3 pages, to appear in "Science China Physics, Mechanics And Astronomy(2010, Vol.53, Suppl.1)"

Scientific paper

10.1007/s11433-010-0052-y

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.

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