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A Large-scale Survey of CO and Its Isotopologues toward the Rosette Molecular Cloud
Li, Chong1,2,3; Wang, Hongchi1,2; Zhang, Miaomiao1,2; Ma, Yuehui1,2,3; Fang, Min4; Yang, Ji1,2
2018-09-01
Source PublicationASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
ISSN0067-0049
Volume238Issue:1Pages:21
Corresponding AuthorWang, Hongchi(hcwang@pmo.ac.cn)
AbstractUsing the PMO-13.7 m millimeter telescope at Delingha in China, we have conducted a large-scale simultaneous survey of (CO)-C-12, (CO)-C-13, and (CO)-O-18 J = 1 - 0 emission toward the Rosette molecular cloud (RMC) region with a sky coverage of 3 degrees.5 x 2 degrees.5. The majority of the emission in the region comes from the RMC complex, with velocities lying in the range from -2 to 20.5 km s(-1). Beyond this velocity range, 73 molecular clumps are identified with kinematic distances from 2.4 to 11 kpc. Based on the spatial and velocity distribution, nine individual clouds, C1-C9, have been identified for the RMC complex. It appears that the C3 cloud is different from other clouds in the RMC complex in view of its characteristic velocity, excitation temperature, and velocity dispersion. Most of the young stellar clusters in the region are located in positions of both high column density and high excitation temperature. Seven new molecular filaments are discovered in the RMC complex. Evidence for cloud-cloud collision is found in the region of young stellar clusters REFL9 and PouF, showing that these young stellar clusters probably result from a cloud-cloud collision. The abundance ratios of (CO)-C-13 to (CO)-O-18 in the region have a mean value of 13.7, which is 2.5 times larger than the solar system value, showing that UV photons from the nearby OB clusters have a strong influence on the chemistry of clouds in the RMC complex.
KeywordH II regions ISM: clouds ISM: individual objects (RMC) stars: formation surveys
DOI10.3847/1538-4365/aad963
WOS KeywordSTAR-FORMATION ; MILKY-WAY ; CLUSTER FORMATION ; RADIO-CONTINUUM ; OB ASSOCIATIONS ; GALACTIC PLANE ; STELLAR CORES ; NGC 2244 ; COMPLEX ; GAS
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000445823200003
PublisherIOP PUBLISHING LTD
Citation statistics
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/21267
Collection中国科学院紫金山天文台
Corresponding AuthorWang, Hongchi
Affiliation1.Chinese Acad Sci, Purple Mt Observ, 2 West Beijing Rd, Nanjing 210008, Jiangsu, Peoples R China
2.Chinese Acad Sci, Key Lab Radio Astron, 2 West Beijing Rd, Nanjing 210008, Jiangsu, Peoples R China
3.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China
4.Univ Arizona, Dept Astron, 933 North Cherry Ave, Tucson, AZ 85721 USA
Recommended Citation
GB/T 7714
Li, Chong,Wang, Hongchi,Zhang, Miaomiao,et al. A Large-scale Survey of CO and Its Isotopologues toward the Rosette Molecular Cloud[J]. ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,2018,238(1):21.
APA Li, Chong,Wang, Hongchi,Zhang, Miaomiao,Ma, Yuehui,Fang, Min,&Yang, Ji.(2018).A Large-scale Survey of CO and Its Isotopologues toward the Rosette Molecular Cloud.ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,238(1),21.
MLA Li, Chong,et al."A Large-scale Survey of CO and Its Isotopologues toward the Rosette Molecular Cloud".ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES 238.1(2018):21.
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