Mid-infrared images of the star forming region GGD 14 (IRAS 06084-0611)

被引:7
|
作者
Persi, P
Tapia, M
机构
[1] CNR, Ist Astrofis Spaziale & Fis Cosm, I-00133 Rome, Italy
[2] Univ Nacl Autonoma Mexico, Inst Astron, Ensenada 22830, Baja California, Mexico
来源
ASTRONOMY & ASTROPHYSICS | 2003年 / 406卷 / 01期
关键词
stars : formation; infrared : stars;
D O I
10.1051/0004-6361:20030697
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Mid-infrared images at 8.7, 9.7 and 12.5 mum are presented of the star forming region GGD 14 associated with the source IRAS 06084-0611. In an area of similar to30" around the IRAS position, two mid-infrared sources were found. One was identified with the cometary compact HII region VLA 1 and the second with the faint and unresolved radio continuum source VLA 4. The mid-infrared morphology of VLA 1 is very similar to that of the radio continuum suggesting a direct interaction between the ionized gas and the dust. The infrared source associated with VLA 4 shows a large infrared excess and its derived infrared luminosity is L1-20 mum = 350 L-circle dot, indicating the presence of a young star later than B3. In addition, its spectrum between 2.47 and 11.62 mum observed by ISOPHOT shows the presence of infrared emission bands at 3.3, 6.2, 7.7, 8.6 and 11.2 mum with relative intensity ratios typical of compact HII regions. Finally, the radio continuum source VLA 2, undetected on our mid-infrared images, shows an infrared luminosity of similar to8.5 L-circle dot confirming its nature of an embedded T-Tauri star.
引用
收藏
页码:149 / 154
页数:6
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