support by the National Basic Research Program of China (Grant No. 2009CB824800);the National Natural Science Foundation of China (Grant Nos. 10725312 and 10673003)
Using the MSX mid-infrared observations,we reveal a 100pc-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...