AFGL 5157 NH3: a new stellar cluster in the forming process
文献类型：期刊论文
| 作者 | Jiang, Zhi-Bo1,2 ; Chen, Zhi-Wei1,2,3; Wang, Yuan1,2; Yang, Ji1; Huang, Jia-Sheng4; Zhang, Qi-Zhou4; Fazio, Giovani4
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| 刊名 | RESEARCH IN ASTRONOMY AND ASTROPHYSICS
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| 出版日期 | 2013-06-01 |
| 卷号 | 13期号:6页码:695-704 |
| ISSN号 | 1674-4527 |
| 关键词 | ISM: individual (AFGL 5157) ISM: jets and outflows ISM: lines and bands stars: formation |
| 通讯作者 | Jiang, ZB (reprint author), Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China. Email: zbjiang@pmo.ac.cn |
| 英文摘要 | We present the analysis of Spitzer/IRAC and near infrared imaging observation of AFGL 5157, an active star forming region. In the IRAC images, this region shows strong emissions of polycyclic aromatic hydrocarbons in channel 4 and emissions of H-2 in channel 2. Many of the H-2 features are aligned to form jet-like structures. Three bipolar jets in the NH3 core region and a couple of jets northwest of the core have been identified. We identify the possible driving agents of the bipolar jets and show them to be very young. An embedded cluster has been detected in the NH3 core; many members in the cluster have spectral energy distributions that increase from JHK bands toward longer wavelengths, indicative of their early evolutionary stages. Millimeter and submillimeter continuum emissions in the NH3 core and the northwest subregion are found to coincide spatially with these presumable Class 0/I sources. The existence of H-2 bipolar jets and very young stellar objects suggests that star formation is continuing at the present epoch in these subregions. Combining information from previous studies, we propose a sequential star formation scenario in the whole AFGL 5157 region. |
| 学科主题 | Astronomy & Astrophysics |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | SPECTRAL ENERGY-DISTRIBUTION ; FAR-INFRARED SOURCES ; PROTOSTELLAR CANDIDATES ; OUTER GALAXY ; OBJECTS ; REGION ; OUTFLOWS ; EMISSION ; AFGL-5157 ; SAMPLE |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000319704300009 |
| 公开日期 | 2014-01-08 |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/9837]  |
| 专题 | 紫金山天文台_分子云与恒星形成研究团组 |
| 作者单位 | 1.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China 2.Chinese Acad Sci, Key Lab Radio Astron, Nanjing 210008, Jiangsu, Peoples R China 3.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 4.Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA |
| 推荐引用方式 GB/T 7714 | Jiang, Zhi-Bo,Chen, Zhi-Wei,Wang, Yuan,et al. AFGL 5157 NH3: a new stellar cluster in the forming process[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2013,13(6):695-704. |
| APA | Jiang, Zhi-Bo.,Chen, Zhi-Wei.,Wang, Yuan.,Yang, Ji.,Huang, Jia-Sheng.,...&Fazio, Giovani.(2013).AFGL 5157 NH3: a new stellar cluster in the forming process.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,13(6),695-704. |
| MLA | Jiang, Zhi-Bo,et al."AFGL 5157 NH3: a new stellar cluster in the forming process".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 13.6(2013):695-704. |
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来源：紫金山天文台
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