Institutional Repository of Radio Astronomy Research Laboratory
| The Deuterium Fractionation of NH3 in Massive Star-forming Regions | |
Li, Yuqiang1,2; Wang, Junzhi3; Li, Juan1,4; Rayalacheruvu, Prathap5,6; Majumdar, Liton5,6; Yan, Yaoting7; Quan, Donghui8,9 ; Lu, Xing1; Zheng, Siqi1,2,4,10
| |
| 2025 | |
| Source Publication | ASTROPHYSICAL JOURNAL
 |
| ISSN | 0004-637X |
| Volume | 978Issue:2Pages:25 |
| Contribution Rank | 9 |
| Abstract | Deuteration is sensitive to environmental conditions in star-forming regions. To investigate NH2D chemistry, we compared the spatial distribution of ortho-NH2D 111s-101a , NH3(1,1), and NH3(2,2) in 12 late-stage massive star-forming regions. By averaging several pixels along the spatial slices of ortho-NH2D 111s-101a , we obtained the deuterium fractionation of NH3. In seven targets, the deuterium fractionation of NH3 shows a decreasing trend with increasing rotational temperature. This trend is less clear in the remaining five sources, likely due to limited spatial resolution. However, when considering all 12 sources together, the anticorrelation between NH3 deuterium fractionation and rotational temperature becomes less significant, suggesting that other physical parameters may influence the fractionation. Additionally, we found that the region of highest deuterium fractionation of NH3 is offset from the NH3 peak in each source, likely because the temperature is higher near the NH3 peaks and NH2D may be depleted from the gas phase as the molecular cloud core evolves, as well as the increased release of CO from grains into the gas phase. |
| DOI | 10.3847/1538-4357/ad8444 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | H-II-REGIONS ; TRIGONOMETRIC PARALLAXES ; DEUTERATED MOLECULES ; IONIZATION FRACTION ; EVOLUTIONARY TRACER ; PHYSICAL-PROPERTIES ; INTERSTELLAR-MEDIUM ; INITIAL CONDITIONS ; RADIO-CONTINUUM ; AMMONIA |
| Funding Project | National Key R&D Program of China ; National Natural Science Foundation of China (NSFC) ; IRAM 30 m telescope[042-19] ; IRAM 30 m telescope[147-19] ; IRAM 30 m telescope[127-20] ; INSU/CNRS (France) ; MPG (Germany) ; IGN (Spain) ; National Research Council of Canada ; Canadian Space Agency, CANARIE ; Canadian Foundation for Innovation ; National Science Foundation[AST-1616635] ; China Scholarship Council (CSC) ; [2022YFA1603101] ; [12173067] |
| WOS Research Area | Astronomy & Astrophysics |
| WOS Subject | Astronomy & Astrophysics |
| WOS ID | WOS:001394233900001 |
| Publisher | IOP Publishing Ltd |
| Funding Organization | National Key R&D Program of China ; National Natural Science Foundation of China (NSFC) ; IRAM 30 m telescope ; INSU/CNRS (France) ; MPG (Germany) ; IGN (Spain) ; National Research Council of Canada ; Canadian Space Agency, CANARIE ; Canadian Foundation for Innovation ; National Science Foundation ; China Scholarship Council (CSC) |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/7375 |
| Collection | 射电天文研究室_天体化学研究团组 |
| Corresponding Author | Li, Yuqiang; Wang, Junzhi; Li, Juan |
| Affiliation | 1.Chinese Acad Sci, Shanghai Astron Observ, 80 Nandan Rd, Shanghai 200030, Peoples R China 2.Univ Chinese Acad Sci, Sch Astron & Space Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China 3.Guangxi Univ, Dept Phys, Guangxi Key Lab Relativist Astrophys, Nanning 530004, Peoples R China 4.Chinese Acad Sci, Key Lab Radio Astron, Nanjing 210033, Peoples R China 5.Natl Inst Sci Educ & Res, Sch Earth & Planetary Sci, Jatni 752050, Odisha, India 6.Homi Bhabha Natl Inst, Training Sch Complex, Mumbai 400094, India 7.Max Planck Inst Radioastron, Hugel 69, D-53121 Bonn, Germany 8.Zhejiang Lab, Res Ctr Intelligent Comp Platforms, Hangzhou 311100, Peoples R China 9.Chinese Acad Sci, Xinjiang Astron Observ, 150 Sci 1 St, Urumqi 830011, Peoples R China 10.Univ Ko?ln, Phys Inst 1, Zulpicher Str 77, D-50937 Cologne, Germany |
| Recommended Citation GB/T 7714 | Li, Yuqiang,Wang, Junzhi,Li, Juan,et al. The Deuterium Fractionation of NH3 in Massive Star-forming Regions[J]. ASTROPHYSICAL JOURNAL,2025,978(2):25. |
| APA | Li, Yuqiang.,Wang, Junzhi.,Li, Juan.,Rayalacheruvu, Prathap.,Majumdar, Liton.,...&Zheng, Siqi.(2025).The Deuterium Fractionation of NH3 in Massive Star-forming Regions.ASTROPHYSICAL JOURNAL,978(2),25. |
| MLA | Li, Yuqiang,et al."The Deuterium Fractionation of NH3 in Massive Star-forming Regions".ASTROPHYSICAL JOURNAL 978.2(2025):25. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Li-2025-The Deuteriu（4999KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment