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arXiv 0907.0575astro-ph.GA
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巨HII区周围超气泡的MSX红外分析NGC3603

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

Jia Wang, Yang Chen

摘要:

利用MSX中红外观测,我们揭示了一个100 pc尺度的超级气泡周围的巨大HII区NGC3603。我们认为,在波段A,C和D的扩散周围的红外发射是由PAH和E波段的发射是由尘埃颗粒为主。拟合的尘埃温度与中央星团紫外光子的加热一致。导出的气泡壳层的气尘质量比为10^2量级。

英文摘要:

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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