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

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.

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

References in corpus (4)

• The aromatic infrared bands as seen by ISO-SWS: probing the PAH model
• New Infrared Emission Features and Spectral Variations in NGC 7023
• The secrets of the nearest starburst cluster: II. The present-day mass function in NGC 3603
• Spatial distribution of emission in Unidentified Infrared Bands from Midcourse Space Experiment Survey

Cited by in corpus (2)

• A Small-Scale Investigation of Molecular Emission toward the Tip of the Western Lobe of W50/SS433
• Herschel Far IR observations of the giant HII region NGC 3603