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Exploring cyanopolyynes towards the C-rich post-AGB star IRAS 22272+5435

文献类型：期刊论文

作者Sun, Yuxuan14,15; Li, Xiaohu12,13,15; Schmidt, Mirek R.11; Szczerba, Ryszard11,13,15; Millar, Tom J.4; Sun, Jixian1,17; Tuo, Juan13,15; Zhang, Yong10,15,16; Fedoseev, Gleb13,15; Yang, Chuanlu9,15
刊名MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
出版日期2025-11-01
卷号544期号:1页码:283-292
关键词astrochemistry stars: AGB and post-AGB circumstellar matter ISM: molecules
ISSN号0035-8711
DOI10.1093/mnras/staf1734
产权排序1
英文摘要Cyanopolyynes are a class of long carbon-chain molecules that are widely distributed in interstellar clouds, but their presence in the circumstellar envelopes (CSEs) of evolved stars appears to be limited to only a few well-studied sources. This study aims to search for the presence of cyanopolyynes in the CSE of the C-rich post-asymptotic giant branch (post-AGB) star IRAS 22272 + 5435 through observational analysis and radiative transfer modelling. Observations were conducted using the Tianma 65 m radio telescope (TMRT) at similar to 15 GHz and the Purple Mountain Observatory (PMO) 13.7 m MM-Wave telescope at similar to 90 GHz. The HC3N J = 10-9 and HCN J = 1-0 transitions were clearly detected in the PMO 13.7 m data, while no significant signals of other cyanopolyynes were detected with TMRT. Based on the observed HC3N line, we constructed a spherically symmetric non-thermodynamic equilibrium radiative transfer model, extrapolating the abundance distribution structure from the well-studied C-rich AGB star IRC + 10216 to IRAS 22272 + 5435. The model successfully reproduces the observed HC3N and HCN profiles and predicts the line intensities of HC5N and HC7N. Although the results suggest that these heavier cyanopolyynes may be present in the CSE, their detections are hindered by the large distance and significant beam dilution effects. This study provides valuable observational constraints and theoretical insights into the formation and evolution of carbon-chain molecules in post-AGB environments.
WOS关键词NEUTRAL-NEUTRAL REACTIONS ; SPECTRAL-LINE SURVEY ; GIANT BRANCH STARS ; CIRCUMSTELLAR ENVELOPE ; HERSCHEL/HIFI OBSERVATIONS ; PROTOPLANETARY NEBULAE ; MOLECULAR-SPECTROSCOPY ; COLOGNE DATABASE ; PLANETARY-NEBULA ; SAGITTARIUS B2
资助项目Chinese Academy of Sciences ; Natural Science Foundation of Xinjiang Uygur Autonomous Region[2024D01E37] ; Natural Science Foundation of Xinjiang Uygur Autonomous Region[2025D01D49] ; Natural Science Foundation of Xinjiang Uygur Autonomous Region[2025D01B174] ; Natural Science Foundation of Xinjiang Uygur Autonomous Region[2025D01B172] ; Natural Science Foundation of Xinjiang Uygur Autonomous Region[2022D01B221] ; National Science Foundation of China[12473025] ; National Science Foundation of China[12203091] ; Science and Technology Facilities Council[ST/T000198/1]
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:001603667500001
出版者OXFORD UNIV PRESS
资助机构Chinese Academy of Sciences ; Natural Science Foundation of Xinjiang Uygur Autonomous Region ; National Science Foundation of China ; Science and Technology Facilities Council
源URL[http://ir.xao.ac.cn/handle/45760611-7/8290]  
专题天体化学研究团组
通讯作者Li, Xiaohu
作者单位1.Chinese Acad Sci, Key Lab Radio Astron, Nanjing 210034, Jiangsu, Peoples R China
2.Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China
3.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 100049, Peoples R China
4.Queens Univ Belfast, Astrophys Res Ctr, Sch Math & Phys, Belfast BT7 1NN, North Ireland
5.Chinese Acad Sci, CAS Key Lab Opt Astron, Natl Astron Observ, Beijing 100101, Peoples R China
6.Anyang Normal Univ, Coll Phys & Elect Engn, Anyang 455000, Henan, Peoples R China
7.Shanxi Univ, Collaborat Innovat Ctr Extreme Opt, Taiyuan 030006, Shanxi, Peoples R China
8.East China Normal Univ, State Key Lab Precis Spect, Shanghai 200062, Peoples R China
9.Ludong Univ, Sch Phys & Optoelect Engn, Yantai 264025, Shandong, Peoples R China
10.Univ Hong Kong, Fac Sci, Lab Space Res, Hong Kong 999077, Peoples R China
推荐引用方式
GB/T 7714		 Sun, Yuxuan,Li, Xiaohu,Schmidt, Mirek R.,et al. Exploring cyanopolyynes towards the C-rich post-AGB star IRAS 22272+5435[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2025,544(1):283-292.
APA Sun, Yuxuan.,Li, Xiaohu.,Schmidt, Mirek R..,Szczerba, Ryszard.,Millar, Tom J..,...&Yang, Jianchao.(2025).Exploring cyanopolyynes towards the C-rich post-AGB star IRAS 22272+5435.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,544(1),283-292.
MLA Sun, Yuxuan,et al."Exploring cyanopolyynes towards the C-rich post-AGB star IRAS 22272+5435".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 544.1(2025):283-292.

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