Knowledge Management System of Purple Mountain Observatory，CAS
| AFGL 5157 NH3: a new stellar cluster in the forming process | |
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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| 2013-06-01 | |
| Source Publication | RESEARCH IN ASTRONOMY AND ASTROPHYSICS
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| ISSN | 1674-4527 |
| Volume | 13Issue:6Pages:695-704 |
| Corresponding Author | Jiang, ZB (reprint author), Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China. Email: zbjiang@pmo.ac.cn |
| Abstract | 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. |
| Keyword | Ism: Individual (Afgl 5157) Ism: Jets And Outflows Ism: Lines And bAnds Stars: Formation |
| Subject Area | Astronomy & Astrophysics |
| WOS Headings | Science & Technology ; Physical Sciences |
| DOI | 10.1088/1674-4527/13/6/009 |
| WOS Keyword | SPECTRAL ENERGY-DISTRIBUTION ; FAR-INFRARED SOURCES ; PROTOSTELLAR CANDIDATES ; OUTER GALAXY ; OBJECTS ; REGION ; OUTFLOWS ; EMISSION ; AFGL-5157 ; SAMPLE |
| Indexed By | SCI |
| Language | 英语 |
| WOS Research Area | Astronomy & Astrophysics |
| WOS Subject | Astronomy & Astrophysics |
| WOS ID | WOS:000319704300009 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://libir.pmo.ac.cn/handle/332002/9837 |
| Collection | 分子云与恒星形成研究团组 |
| Affiliation | 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 |
| Recommended Citation 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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| 2013082AFGL 5157 NH3（526KB） | 开放获取 | CC BY-NC-SA | View Application Full Text | |||
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