Infrared Imaging of the Large Magellanic Cloud Star-forming Region Henize 206
Infrared Imaging of the Large Magellanic Cloud Star-forming Region Henize 206
复制标题
大麦哲伦星云恒星形成区 Henize 206 的红外成像
DOI：
10.1086/422689
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发表时间：
2004
期刊：
影响因子：
--
通讯作者：
C. Packham
中科院分区：
文献类型：
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作者：
V. Gorjian;M. W. Werner;J. Mould;K. Gordon;J. Muzzerole;J. Morrison;J. Surace;L. Rebull;R. Hurt;R. C. Smith;S. Points;C. Aguilera;J. D. De Buizer;C. Packham
Henize 206是大麦哲伦星云中的一个星星形成区域，其大小与猎户座腰带和剑的大小相当。我们的斯皮策太空望远镜红外图像和Cerro Tololo Inter-American Observatory（CTIO）光学图像显示，该地区正在经历非常活跃的星星形成。来自年轻恒星的辐射激发了整个Henize 206的强多环芳烃（PAH）发射，除了星云中有突出的年轻超新星遗迹的一侧。正如斯皮策对M81的早期观测中所看到的那样，与从远红外发射计算的星星形成率相比，从Henize 206的Hα计算的星星形成率可能会错过深度嵌入的年轻恒星。对于Henize 206表面亮度最高的区域之一，我们使用Gemini South上的热区域相机光谱仪获得了快照曝光，以探索复杂的结构。来自Henize 206最亮区域的总通量的百分之几来自亚秒差距尺度的红外峰。
Henize 206 is a region of star formation in the Large Magellanic Cloud of the approximate scale of the Orion belt and sword. Our Spitzer Space Telescope infrared images and Cerro Tololo Inter-American Observatory (CTIO) optical images show that the region is experiencing very energetic star formation. The radiation from young stars has excited strong polycyclic aromatic hydrocarbon (PAH) emission throughout Henize 206, except on the side of the nebula with the prominent young supernova remnant. As is also seen in early Spitzer observations of M81, star formation rates calculated from Hα for Henize 206 may miss the deeply embedded young stars, compared with star formation rates calculated from far infrared emission. For one of the highest surface brightness regions of Henize 206, we obtained snapshot exposures with the Thermal-Region Camera Spectrograph on Gemini South to explore the complex structure. A few percent of the total flux from this brightest region in Henize 206 emanates from infrared peaks of subparsec scale.