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题名: INTERACTION BETWEEN SUPERNOVA REMNANT G22.7-0.2 AND THE AMBIENT MOLECULAR CLOUDS
作者: Su, Yang1, 2; Yang Ji(杨戟)1, 2; Zhou Xin(周鑫)1, 2; Zhou, Ping3; Chen, Yang3
刊名: ASTROPHYSICAL JOURNAL
出版日期: 2014-12-01
卷号: 796, 期号:2, 页码:122
关键词: ISM: individual objects (G22.7-0.2) ; ISM: molecules ; ISM: supernova remnants
学科分类: 天文和天体物理
DOI: 10.1088/0004-637X/796/2/122
文章类型: Article
英文摘要: We have carried out (CO)-C-12 (J = 1-0 and 2-1), (CO)-C-13 (J = 1-0), and (CO)-O-18 (J = 1-0) observations in the direction of the supernova remnant (SNR) G22.7-0.2. A filamentary molecular gas structure, which is likely part of a larger molecular complex with VLSR similar to 75-79 km s(-1), is detected and is found to surround the southern boundary of the remnant. In particular, the high-velocity wing (77-110 km s(-1)) in the (CO)-C-12 (J = 1-0 and J = 2-1) emission shows convincing evidence of the interaction between SNR G22.7-0.2 and the 75-79 km s(-1) molecular clouds (MCs). Spectra with redshifted profiles, a signature of shocked molecular gas, are seen in the southeastern boundary of the remnant. The association between the remnant and the 77 km s(-1) MCs places the remnant at the near distance of 4.4 +/- 0.4 kpc, which agrees with a location on the Scutum-Crux arm. We suggest that SNR G22.7-0.2, SNR W41, and Hii region G022.760-0.485 are at the same distance and are associated with GMC G23.0-0.4.
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Astronomy & Astrophysics
研究领域[WOS]: Astronomy & Astrophysics
关键词[WOS]: MASSIVE STAR-FORMATION ; H-II REGIONS ; IC 443 ; TRIGONOMETRIC PARALLAXES ; IMAGING SURVEY ; INNER GALAXY ; HII-REGIONS ; MILKY-WAY ; TELESCOPE ; DISCOVERY
收录类别: SCI
语种: 英语
WOS记录号: WOS:000344878900051
Citation statistics:
内容类型: 期刊论文
URI标识: http://libir.pmo.ac.cn/handle/332002/11561
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.Nanjing Univ, Dept Astron, Nanjing 210093, Jiangsu, Peoples R China

Recommended Citation:
Su, Yang; Yang, Ji; Zhou, Xin; Zhou, Ping; Chen, Yang.INTERACTION BETWEEN SUPERNOVA REMNANT G22.7-0.2 AND THE AMBIENT MOLECULAR CLOUDS,ASTROPHYSICAL JOURNAL,2014,796(2):122
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