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Formaldehyde observations of the Perseus Molecular Cloud

文献类型：期刊论文

作者Mahmut, Umut2,3; Esimbek, Jarken3,4,7; Baan, Willem3,6; Tang, Xindi3,4,7; Zhou, Jianjun3,4,7; Li, Dalei3,4,7; He, Yuxin3,4,7; Tursun, Kadirya3,7; Li, Jiasheng2,3; Komesh, Toktarkhan1,5
刊名MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
出版日期2024-01-13
卷号528期号:1页码:577-595
关键词stars: formation ISM: abundance ISM: clouds ISM: molecules
ISSN号0035-8711
DOI10.1093/mnras/stad3959
产权排序1
英文摘要Large-scale observations of the Perseus Molecular Cloud (MC) with Nanshan 26-m telescope are presented using the 6 cm ortho-H 2CO (1(10)-1(11)) transition. As a probe of dense gas at low temperatures, the H2CO absorption extends over the main parts of the Perseus MC. A comparison of the H2CO absorption line with the (CO)-C-12 and (CO)-C-13 (J = 1-0) emissions shows that the H2CO and CO are similarly distributed over the Perseus but that H2CO correlates better with (CO)-C-13. Comparison with the Herschel-derived H-2 column density shows that both the (CO)-C-13 and H2CO column densities vary linearly with the H-2 column density. The main parameters of H2CO absorption line data show a log-normal distribution, which suggests that the strong non-thermal line-broadening results from large-scale supersonic turbulence related to the star formation. Formaldehyde absorption serves well as a tracer of star formation activity and also the H2CO-to-(CO)-C-13 and H2CO-to-H-2 abundances systematically trace the star formation activity in the six subregions of Perseus MC. The H2CO abundances anticorrelate with the number of prestellar and protostellar cores and the IRIS 12 mu m flux in the six subregions and reveal the star formation history in the Perseus MC.
WOS关键词STAR-FORMING GALAXIES ; MASS-METALLICITY RELATION ; CO-TO-H-2 CONVERSION FACTOR ; H-II REGIONS ; TO-GAS RATIO ; SPECTRAL ENERGY-DISTRIBUTIONS ; DUST ATTENUATION ; STELLAR MASS ; FORMATION RATES ; MAIN-SEQUENCE
资助项目National Key R&D Program of China[2022YFA1603103] ; Regional Collaborative Innovation Project of Xinjiang Uyghur Autonomous Region[2022E01050] ; Tianshan Talent Program of Xinjiang Uygur Autonomous Region[2022TSYCLJ0005] ; Tianchi Talents Program of Xinjiang Uygur Autonomous Region ; Natural Science Foundation of Xinjiang Uygur Autonomous Region[2022D01E06] ; Chinese Academy of Sciences (CAS) 'Light of West China' Program[xbzg-zdsys-202212] ; Chinese Academy of Sciences (CAS) 'Light of West China' Program[2020-XBQNXZ-017] ; Chinese Academy of Sciences (CAS) 'Light of West China' Program[2021-XBQNXZ-028] ; National Natural Science Foundation of China[12173075] ; National Natural Science Foundation of China[11973076] ; National Natural Science Foundation of China[12103082] ; Xinjiang Key Laboratory of Radio Astrophysics[2022D04033] ; Youth Innovation Promotion Association CAS - Chinese Academy of Sciences President's International Fellowship Initiative[2022VMA0019] ; Science Committee of the Ministry of Science and Higher Education of the Republic of Kazakhstan[AP13067768] ; Operation, Maintenance, and Upgrading Fund for Astronomical Telescopes and Facility Instruments ; Ministry of Finance of China
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:001148462800021
出版者OXFORD UNIV PRESS
资助机构National Key R&D Program of China ; Regional Collaborative Innovation Project of Xinjiang Uyghur Autonomous Region ; Tianshan Talent Program of Xinjiang Uygur Autonomous Region ; Tianchi Talents Program of Xinjiang Uygur Autonomous Region ; Natural Science Foundation of Xinjiang Uygur Autonomous Region ; Chinese Academy of Sciences (CAS) 'Light of West China' Program ; National Natural Science Foundation of China ; Xinjiang Key Laboratory of Radio Astrophysics ; Youth Innovation Promotion Association CAS - Chinese Academy of Sciences President's International Fellowship Initiative ; Science Committee of the Ministry of Science and Higher Education of the Republic of Kazakhstan ; Operation, Maintenance, and Upgrading Fund for Astronomical Telescopes and Facility Instruments ; Ministry of Finance of China
源URL[http://ir.xao.ac.cn/handle/45760611-7/7027]  
专题恒星形成与演化研究团组
射电天文研究室_利用南山26米射电望远镜观测数据的文章
通讯作者Mahmut, Umut; Esimbek, Jarken; Tang, Xindi
作者单位1.Nazarbayev Univ, Energet Cosmos Lab, Astana 010000, Kazakhstan
2.Univ Chinese Acad Sci, Beijing 100080, Peoples R China
3.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China
4.Chinese Acad Sci, Key Lab Radio Astron, Urumqi 830011, Peoples R China
5.Al Farabi Kazakh Natl Univ, Fac Phys & Technol, Alma Ata 050040, Kazakhstan
6.Netherlands Inst Radio Astron, NL-7991 PD Dwingeloo, Netherlands
7.Xinjiang Key Lab Radio Astrophys, Urumqi 830011, Peoples R China
推荐引用方式
GB/T 7714		 Mahmut, Umut,Esimbek, Jarken,Baan, Willem,et al. Formaldehyde observations of the Perseus Molecular Cloud[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2024,528(1):577-595.
APA Mahmut, Umut.,Esimbek, Jarken.,Baan, Willem.,Tang, Xindi.,Zhou, Jianjun.,...&Sailanbek, Serikbek.(2024).Formaldehyde observations of the Perseus Molecular Cloud.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,528(1),577-595.
MLA Mahmut, Umut,et al."Formaldehyde observations of the Perseus Molecular Cloud".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 528.1(2024):577-595.

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来源：新疆天文台

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