PMO OpenIR  > 分子云与恒星形成研究团组
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
2013-06-01
Source PublicationRESEARCH IN ASTRONOMY AND ASTROPHYSICS
ISSN1674-4527
Volume13Issue:6Pages:695-704
Corresponding AuthorJiang, ZB (reprint author), Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China. Email: zbjiang@pmo.ac.cn
AbstractWe 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.
KeywordIsm: Individual (Afgl 5157) Ism: Jets And Outflows Ism: Lines And bAnds Stars: Formation
Subject AreaAstronomy & Astrophysics
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1088/1674-4527/13/6/009
WOS KeywordSPECTRAL ENERGY-DISTRIBUTION ; FAR-INFRARED SOURCES ; PROTOSTELLAR CANDIDATES ; OUTER GALAXY ; OBJECTS ; REGION ; OUTFLOWS ; EMISSION ; AFGL-5157 ; SAMPLE
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000319704300009
Citation statistics
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/9837
Collection分子云与恒星形成研究团组
Affiliation1.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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