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A λ 3 mm Line Survey toward the Circumstellar Envelope of the Carbon-rich AGB Star IRC+10216 (CW Leo)

文献类型：期刊论文

作者Tuo, Juan7,8; Li, Xiaohu7,9; Sun, Jixian3,12; Millar, Tom J.4; Zhang, Yong5,6,7; Qiu, Jianjie5; Quan, Donghui7,10; Esimbek, Jarken7,9; Zhou, Jianjun7,9; Gao, Yu3,11,12
刊名ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
出版日期2024-04-01
卷号271期号:2页码:45
ISSN号0067-0049
DOI10.3847/1538-4365/ad2460
产权排序1
英文摘要We present an unbiased lambda 3 mm spectral line survey (between 84.5 and 115.8 GHz), conducted by the Purple Mountain Observatory 13.7 m radio telescope, together with updated modeling results, toward the carbon-rich asymptotic giant branch star IRC+10216 (CW Leo). A total of 75 spectral lines (96 transitions) are detected, and identified to arise from 19 molecules: C2H, l-C3H, C4H, CN, C3N, HC3N, HC5N, HCN, HNC, CH3CN, MgNC, CO, c-C3H2, SiC2, SiO, SiS, CS, C2S, C3S, and their isotopologues. Among them, one molecular emission line ((HCCCN)-C-13 J = 13-12) is discovered in IRC+10216 for the first time. The excitation temperature, column density, and fractional abundance of the detected species are deduced by assuming they are in local thermodynamic equilibrium. In addition, the isotopic ratios of [C-12]/[C-13], [S-32]/[S-34], [Si-28]/[Si-29], and [(CS)-C-12-S-34]/[(CS)-C-13-S-32] are obtained and found to be consistent with previous studies. Finally, we summarize all of the 106 species detected in IRC+10216 to date with their observed and modeled column densities for the convenience of future studies.
WOS关键词GIANT BRANCH STARS ; ION-MOLECULE CHEMISTRY ; VY CANIS MAJORIS ; ASTRONOMICAL DETECTION ; TENTATIVE DETECTION ; OXYGEN-RICH ; EVOLVED STARS ; MILLIMETER OBSERVATIONS ; PHOSPHORUS CHEMISTRY ; ABUNDANCE VARIATIONS
资助项目Xinjiang Tianchi project (2019)[2022YFA1603103] ; Xinjiang Tianchi Talent project - National Key R&D Program of China[11973076] ; Xinjiang Tianchi Talent project - National Key R&D Program of China[12173023] ; Xinjiang Tianchi Talent project - National Key R&D Program of China[12003080] ; Xinjiang Tianchi Talent project - National Key R&D Program of China[11973075] ; NSFC[2019A1515110588] ; Guangdong Basic and Applied Basic Research Foundation[2022D01B221] ; Natural Science Foundation of Xinjiang Uygur Autonomous Region ; Project of Xinjiang Uygur Autonomous Region of China for Flexibly Fetching in Upscale Talents ; Leverhulme Trust[ST/T000198/1] ; Leverhulme Trust[2023] ; STFC
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:001191109300001
出版者IOP Publishing Ltd
资助机构Xinjiang Tianchi project (2019) ; Xinjiang Tianchi Talent project - National Key R&D Program of China ; NSFC ; Guangdong Basic and Applied Basic Research Foundation ; Natural Science Foundation of Xinjiang Uygur Autonomous Region ; Project of Xinjiang Uygur Autonomous Region of China for Flexibly Fetching in Upscale Talents ; Leverhulme Trust ; STFC
源URL[http://ir.xao.ac.cn/handle/45760611-7/6217]  
专题天体化学研究团组
通讯作者Li, Xiaohu
作者单位1.Changchun Inst Technol, Coll Sci, Changchun 130012, Jilin, Peoples R China
2.Shandong Univ Technol, Sch Phys & Optoelect Engn, Zibo 255000, Shandong, Peoples R China
3.Chinese Acad Sci, Key Lab Radio Astron, Nanjing 210034, Peoples R China
4.Queens Univ, Belfast BT7 1NN, North Ireland
5.Sun Yat Sen Univ, Sch Phys & Astron, Guangzhou 510275, Peoples R China
6.Univ Hong Kong, Fac Sci, Lab Space Res, Hong Kong, Peoples R China
7.Chinese Acad Sci, Xinjiang Astron Observ, 150 Sci 1-St, Urumqi 830011, Xinjiang, Peoples R China
8.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
9.Xinjiang Key Lab Radio Astrophys, 150 Sci 1-St, Urumqi 830011, Xinjiang, Peoples R China
10.Astron Comp Res Ctr, Zhejiang Lab, Hangzhou 311100, Peoples R China
推荐引用方式
GB/T 7714		 Tuo, Juan,Li, Xiaohu,Sun, Jixian,et al. A λ 3 mm Line Survey toward the Circumstellar Envelope of the Carbon-rich AGB Star IRC+10216 (CW Leo)[J]. ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,2024,271(2):45.
APA Tuo, Juan.,Li, Xiaohu.,Sun, Jixian.,Millar, Tom J..,Zhang, Yong.,...&Fang, Xuan.(2024).A λ 3 mm Line Survey toward the Circumstellar Envelope of the Carbon-rich AGB Star IRC+10216 (CW Leo).ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,271(2),45.
MLA Tuo, Juan,et al."A λ 3 mm Line Survey toward the Circumstellar Envelope of the Carbon-rich AGB Star IRC+10216 (CW Leo)".ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES 271.2(2024):45.

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