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Chemistry of NH2OH and its related species in the ISM

文献类型：期刊论文

作者Zhao, Guoming4,5; He, Mingwei5; Quan, Donghui4; Li, Dalei3; Yang, Xue5; Chang, Qiang2; Ma, Ming-Shuo1; Qu, Minglei5
刊名MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
出版日期2023-05-23
卷号523期号:1页码:1-22
关键词astrochemistry shock waves ISM: abundances ISM: molecules
ISSN号0035-8711
DOI10.1093/mnras/stad1379
通讯作者Zhao, Guoming(zhaoguoming1980@foxmail.com) ; Quan, Donghui(donghui.quan@zhejianglab.com) ; Yang, Xue(yangxue11791539@163.com)
英文摘要Hydroxylamine (NH2OH) is a key precursor of both the formation of amino acids and the concurrent synthesis of pyrimidine and purine nucleosides. Recently, NH2OH was detected towards the quiescent molecular cloud G+0.693-0.027, which is located in the Galactic Centre. In this study, we construct the chemical network for NH2OH and its related species via quantum chemical calculations, and simulate their chemistry using the astrochemical code Nautilus in isothermal models and shock models. According to the disagreement distance formula and molecular abundance ratios, we acquire the best-fitting isothermal model T18 and the best-fitting C-shock model S2, respectively. Of these two models, S2 is more suitable for G+0.693-0.027 due to its reproduction of abundances of all considered molecules. From the model, we found that NH2OH and CH3NH2 are mainly formed on grain surfaces, while HNCN and CH2NH, which are the post-shock tracers, are produced by both gas-phase and grain-surface reactions. Our chemical modelling also agrees with the observed abundances or upper limits of NH2OH and its related species towards IRAS 16293-2422 B and Sgr B2(N). Moreover, we predict that NH2OH and the undiscovered species H2NO and HNOH are of high abundance, thus are detectable in cold clouds and pre-stellar cores, and in G+0.693-0.027, respectively.
WOS关键词GAS-GRAIN CHEMISTRY ; COMPLEX ORGANIC-MOLECULES ; DENSE INTERSTELLAR CLOUDS ; STAR-FORMING REGIONS ; BASIS-SETS ; THERMOCHEMICAL KINETICS ; CHEMICAL-COMPOSITION ; CORRELATION-ENERGY ; SAGITTARIUS B2 ; DUST GRAINS
资助项目Science and Technology Research Project of Jilin Provincial Education Department[JJKH20220235KJ] ; Science and Technology Research Project of Jilin Provincial Education Department[JJKH20220232KJ] ; National Natural Science Foundation of China[11973075] ; National Natural Science Foundation of China[11904126] ; National Natural Science Foundation of China[12173075] ; National Natural Science Foundation of China[12173023] ; Youth Innovation Promotion Association CAS ; Tianshan Innovation Team Plan of Xinjiang Uygur Autonomous Region[2022D14020]
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:000996062900001
出版者OXFORD UNIV PRESS
资助机构Science and Technology Research Project of Jilin Provincial Education Department ; National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS ; Tianshan Innovation Team Plan of Xinjiang Uygur Autonomous Region
源URL[http://ir.xao.ac.cn/handle/45760611-7/5258]  
专题研究单元未命名
通讯作者Zhao, Guoming; Quan, Donghui; Yang, Xue
作者单位1.Jilin Inst Chem Technol, Ctr Anal & Measurement, Jilin 132022, Jilin, Peoples R China
2.Shandong Univ Technol, Sch Phys & Optoeletron Engn, Zibo 255000, Shandong, Peoples R China
3.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Xinjiang, Peoples R China
4.Zhejiang Lab, Res Ctr Intelligent Comp Platforms, Hangzhou 311100, Zhejiang, Peoples R China
5.Jilin Inst Chem Technol, Sch Sci, Jilin 132022, Jilin, Peoples R China
推荐引用方式
GB/T 7714		 Zhao, Guoming,He, Mingwei,Quan, Donghui,et al. Chemistry of NH2OH and its related species in the ISM[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2023,523(1):1-22.
APA Zhao, Guoming.,He, Mingwei.,Quan, Donghui.,Li, Dalei.,Yang, Xue.,...&Qu, Minglei.(2023).Chemistry of NH2OH and its related species in the ISM.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,523(1),1-22.
MLA Zhao, Guoming,et al."Chemistry of NH2OH and its related species in the ISM".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 523.1(2023):1-22.

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来源：新疆天文台

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