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题名: A DEEP NEAR-INFRARED SURVEY TOWARD THE AQUILA MOLECULAR CLOUD. I. MOLECULAR HYDROGEN OUTFLOWS
作者: Zhang, Miaomiao1, 2; Fang Min(房敏)1, 2; Wang HongChi(王红池)1, 2; Sun, Jia1, 2, 3; Wang Min(王敏)1, 2; Jiang ZhiBo(江治波)1, 2; Anathipindika, Sumedh4
刊名: ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
出版日期: 2015-08-01
卷号: 219, 期号:2, 页码:21
关键词: infrared: ISM ; ISM: jets and outflows ; shock waves ; stars: formation ; stars: winds, outflows
学科分类: 天文和天体物理
DOI: 10.1088/0067-0049/219/2/21
文章类型: Article
英文摘要: We have performed an unbiased, deep near-infrared survey toward the Aquila molecular cloud with a sky coverage of similar to 1 deg(2). We identified 45 molecular hydrogen emission-line objects (MHOs), of which only 11 were previously known. Using the Spitzer archival data, we also identified 802 young stellar objects (YSOs) in this region. Based on the morphology and the location of MHOs and YSO candidates, we associate 43 MHOs with 40 YSO candidates. The distribution of jet length shows an exponential decrease in the number of outflows with increasing length, and the molecular hydrogen outflows seem to be oriented randomly. Moreover, there is no obvious correlation between jet lengths, jet opening angles, or jet H-2 1-0 S(1) luminosities and the spectral indices of the possible driving sources in this region. We also suggest that molecular hydrogen outflows in the Aquila molecular cloud are rather weak sources of turbulence, unlikely to generate the observed velocity dispersion in the region of survey.
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Astronomy & Astrophysics
研究领域[WOS]: Astronomy & Astrophysics
关键词[WOS]: YOUNG STELLAR OBJECTS ; SPITZER-SPACE-TELESCOPE ; STAR-FORMING REGION ; HERBIG-HARO OBJECTS ; GOULD BELT SURVEY ; T-TAURI STARS ; RHO-OPHIUCHI ; ARRAY CAMERA ; EMBEDDED-CLUSTER ; MILKY-WAY
收录类别: SCI
所属项目名称: PMO_LIB-IR
语种: 英语
WOS记录号: WOS:000361876600007
Citation statistics:
内容类型: 期刊论文
URI标识: http://libir.pmo.ac.cn/handle/332002/14820
Appears in Collections:分子云与恒星形成研究团组_期刊论文

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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.Univ Chinese Acad Sci, Beijing 100080, Peoples R China
4.Indian Inst Technol, Dept Phys, Kharagpur 721302, W Bengal, India
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