CG 30周围的赫比格-哈罗天体
Herbig-Haro objects around CG 30
摘要：
在这项工作中，我们研究赫比格-哈罗对象位于彗星球状体CG 30的头部周围的区域。两组光学图像。第一组是1995年用3.5米新技术望远镜在三条发射谱线上获得的：Halalpha，[SII] 6731，6716 A和[OII]3729 A。第二组是2006年用8米斯巴鲁望远镜获得的CG 30/31/38复合体的H α图像。使用来自两个时期的Halpha图像对该区域中的HH对象进行自行研究。由于我们的图像分辨率很高，我们首次能够将HH 120物体分解为10节，并测量其中一些物体的自行。我们发现了几个新的HH对象和一个大的双极射流，HH 950，从CG 30的头部出现。我们认为，两个以前已知的亚毫米源的驱动源HH 120和HH 950流。
英文摘要：
In this work we study Herbig-Haro objects located in the region around the head of the cometary globule CG 30. Two sets of optical images are presented. The first set was obtained with the 3.5 m New Technology Telescope in 1995 in three emission lines: Halpha, [SII]6731,6716 A and [OII]3729 A. The second set is an Halpha image of the CG 30/31/38 complex obtained in 2006 with the 8 m Subaru telescope. A proper motion study of the HH objects in the region was performed using the Halpha images from both epochs. Due to the high resolution of our images we were able to, for the first time, resolve the HH 120 object into ten knots and measure proper motions for some of them. We discover several new HH objects and a large bipolar jet, HH 950, emerging from the head of CG 30. We suggest that two previously known submillimeter sources are the driving sources for the HH 120 and HH 950 flows.
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