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| Chemical Variations Across the TMC-1 Boundary: Molecular Tracers from the Translucent Phase to the Dense Phase | |
Chen, Long-Fei1 ; Li, Di1,2,3; Quan, Donghui4; Zhang, Xia5; Chang, Qiang6; Li, Xiaohu5; Xiao, Lin7
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| 2022-04-01 | |
| Source Publication | ASTROPHYSICAL JOURNAL
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| ISSN | 0004-637X |
| Volume | 928Issue:2Pages:175 |
| Contribution Rank | 5 |
| Abstract | We investigated the chemical evolutions of gas-phase and grain-surface species across the Taurus molecular cloud-1 (TMC-1) filament from the translucent phase to the dense phase. By comparing observations with modeling results from an up-to-date chemical network, we examined the conversion processes for the carbon-, oxygen-, nitrogen-, and sulfur-bearing species, i.e., from their initial atomic form to their main molecular reservoir form both in the gas phase and on the grain surface. The conversion processes were found to depend on the species and A ( V ). The effect of initial carbon-to-oxygen elemental abundances ratio (C/O) by varying O on the chemistry was explored, and an initial carbon elemental abundance of 2.5 x 10(-4) and a C/O ratio of 0.5 could best reproduce the abundances of most observed molecules at TMC-1 CP, where more than 90 molecules have been identified. Based on the TMC-1 condition, we predicted a varied grain ice composition during the evolutions of molecular clouds, with H2O ice as the dominant ice composition at A ( V ) > 4 mag, CO2 ice as the dominant ice composition at A ( V ) <4 mag, while CO ice severely decreased at A ( V ) around 4-5 mag. |
| DOI | 10.3847/1538-4357/ac5a45 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | POLYCYCLIC AROMATIC-HYDROCARBONS ; NARROW SELF-ABSORPTION ; CHEMISTRY ; CLOUD ; GAS ; DIFFUSE ; DISCOVERY ; DUST ; ABUNDANCE ; SULFUR |
| Funding Project | National Natural Science Foundation of China (NSFC)[11988101] ; National Natural Science Foundation of China (NSFC)[11725313] ; National Natural Science Foundation of China (NSFC)[11703075] ; National Natural Science Foundation of China (NSFC)[11973075] ; science and technology projects in Jilin Province Department of Education[JJKH20200607KJ] ; CAS Light of West China Program[2017-XBQNXZ-B-020] ; Heaven Lake Hundred-talent Program of the Xinjiang Uygur Autonomous Region of China |
| WOS Research Area | Astronomy & Astrophysics |
| WOS Subject | Astronomy & Astrophysics |
| WOS ID | WOS:000780061800001 |
| Publisher | IOP Publishing Ltd |
| Funding Organization | National Natural Science Foundation of China (NSFC) ; science and technology projects in Jilin Province Department of Education ; CAS Light of West China Program ; Heaven Lake Hundred-talent Program of the Xinjiang Uygur Autonomous Region of China |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/4608 |
| Collection | 射电天文研究室_天体化学研究团组 |
| Corresponding Author | Chen, Long-Fei; Li, Di |
| Affiliation | 1.Chinese Acad Sci, Natl Astron Observ, 20A Datun Rd, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Univ KwaZulu Natal, NAOC UKZN Computat Astrophys Ctr, ZA-4000 Durban, South Africa 4.Eastern Kentucky Univ, Dept Chem, 521 Lancaster Ave, Richmond, KY 40475 USA 5.Chinese Acad Sci, Xinjiang Astron Observ, 150 Sci 1 St, Urumqi 830011, Peoples R China 6.Shandong Univ Technol, Sch Phys & Optoelect Engn, Zibo 255000, Peoples R China 7.Changchun Inst Technol, Coll Sci, Changchun 130012, Jilin, Peoples R China |
| Recommended Citation GB/T 7714 | Chen, Long-Fei,Li, Di,Quan, Donghui,et al. Chemical Variations Across the TMC-1 Boundary: Molecular Tracers from the Translucent Phase to the Dense Phase[J]. ASTROPHYSICAL JOURNAL,2022,928(2):175. |
| APA | Chen, Long-Fei.,Li, Di.,Quan, Donghui.,Zhang, Xia.,Chang, Qiang.,...&Xiao, Lin.(2022).Chemical Variations Across the TMC-1 Boundary: Molecular Tracers from the Translucent Phase to the Dense Phase.ASTROPHYSICAL JOURNAL,928(2),175. |
| MLA | Chen, Long-Fei,et al."Chemical Variations Across the TMC-1 Boundary: Molecular Tracers from the Translucent Phase to the Dense Phase".ASTROPHYSICAL JOURNAL 928.2(2022):175. |
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| Chen-2022-Chemical V（1773KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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