INTERACTIONS OF THE INFRARED BUBBLE N4 WITH ITS SURROUNDINGS
文献类型：期刊论文
| 作者 | Liu, Hong-Li1,2,3 ; Li, Jin-Zeng1; Wu, Yuefang4; Yuan, Jing-Hua1; Liu, Tie5; Dubner, G.6; Paron, S.6,7; Ortega, M. E.6; Molinari, Sergio8; Huang, Maohai1
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| 刊名 | ASTROPHYSICAL JOURNAL
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| 出版日期 | 2016-02-10 |
| 卷号 | 818期号:1 |
| 关键词 | H II regions ISM: bubbles ISM: individual objects (N4) stars: formation stars: massive |
| 英文摘要 | The physical mechanisms that induce the transformation of a certain mass of gas in new stars are far from being well understood. Infrared bubbles associated with H II regions have been considered to be good samples for investigating triggered star formation. In this paper we report on the investigation of the dust properties of the infrared bubble N4 around the H II. region G11.898+0.747, analyzing its interaction with its surroundings and star formation histories therein, with the aim of determining the possibility of star formation triggered by the expansion of the bubble. Using Herschel PACS and SPIRE images with a wide wavelength coverage, we reveal the dust properties over the entire bubble. Meanwhile, we are able to identify six dust clumps surrounding the bubble, with a mean size of 0.50 pc, temperature of about 22 K, mean column density of 1.7 x 10(22) cm(-2), mean volume density of about 4.4 x 10(4) cm(-3), and a mean mass of 320M(circle dot). In addition, from PAH emission seen at 8 mu m, free-free emission detected at 20 cm, and a probability density function in special regions, we could identify clear signatures of the influence of the H II region on the surroundings. There are hints of star formation, though further investigation is required to demonstrate that N4 is the triggering source. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000370370800095 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/5437]  |
| 专题 | 国家天文台_应用天文研究部 |
| 作者单位 | 1.Chinese Acad Sci, Natl Astron Observ, 20A Datun Rd, Beijing 100012, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Aix Marseille Univ, CNRS, LAM, UMR 7326, F-13388 Marseille, France 4.Peking Univ, Dept Astron, Beijing 100871, Peoples R China 5.Korea Astron & Space Sci Inst, 776 Daedeokdae Ro, Daejeon 305348, South Korea 6.UBA, CONICET, IAFE, Astron & Fis Espacio 1Inst, CC 67,Suc 28, RA-1428 Buenos Aires, DF, Argentina 7.Univ Buenos Aires, 2FADU, Buenos Aires, DF, Argentina 8.Ist Nazl Astrofis INAF, IAPS, Via Fosso del Cavaliere 100, I-00133 Rome, Italy |
| 推荐引用方式 GB/T 7714 | Liu, Hong-Li,Li, Jin-Zeng,Wu, Yuefang,et al. INTERACTIONS OF THE INFRARED BUBBLE N4 WITH ITS SURROUNDINGS[J]. ASTROPHYSICAL JOURNAL,2016,818(1). |
| APA | Liu, Hong-Li.,Li, Jin-Zeng.,Wu, Yuefang.,Yuan, Jing-Hua.,Liu, Tie.,...&Zhang, Si-Ju.(2016).INTERACTIONS OF THE INFRARED BUBBLE N4 WITH ITS SURROUNDINGS.ASTROPHYSICAL JOURNAL,818(1). |
| MLA | Liu, Hong-Li,et al."INTERACTIONS OF THE INFRARED BUBBLE N4 WITH ITS SURROUNDINGS".ASTROPHYSICAL JOURNAL 818.1(2016). |
入库方式： OAI收割
来源：国家天文台
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