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| A new data structure for accelerating kinetic Monte Carlo method | |
Zheng, Xu-Li1,4 ; Quan, Dong-Hui1,2; Zhang, Hai-Long1; Li, Xiao-Hu1; Chang, Qiang1; Sipila, Olli3
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| 2019-12-01 | |
| Source Publication | RESEARCH IN ASTRONOMY AND ASTROPHYSICS
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| ISSN | 1674-4527 |
| Volume | 19Issue:12Pages:176 |
| Contribution Rank | 1 |
| Abstract | The kinetic Monte Carlo simulation is a rigorous numerical approach to study the chemistry on dust grains in cold dense interstellar clouds. By tracking every single reaction in chemical networks step by step, this approach produces more precise results than other approaches but takes too much computing time. Here we present a method of a new data structure, which is applicable to any physical conditions and chemical networks, to save computing time for the Monte Carlo algorithm. Using the improved structure, the calculating time is reduced by 80 percent compared with the linear structure when applied to the osu-2008 chemical network at 10 K. We investigate the effect of the encounter desorption in cold cores using the kinetic Monte Carlo model with an accelerating data structure. We found that the encounter desorption remarkably decreases the abundance of grain-surface H-2 but slightly influences the abundances of other species on the grain. |
| Keyword | astrochemistry molecular processes methods: numerical ISM: molecules ISM: abundances |
| DOI | 10.1088/1674-4527/19/12/176 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | DENSE INTERSTELLAR CLOUDS ; GAS-GRAIN CHEMISTRY ; MODELS ; SIMULATION ; MANTLES ; PHASE |
| Funding Project | CAS Light of West China Program[2017-QNXZ-B] ; Heaven Lake Hundred-Talent Program of Xinjiang Uygur Autonomous Region of China ; National Natural Science Foundation of China[11673054 11873082] ; National Natural Science Foundation of China[U1531125] ; National Natural Science Foundation of China[11803080] ; National Natural Science Foundation of China[11503075] ; National Natural Science Foundation of China[11543002] ; National Natural Science Foundation of China[11673054] ; National Natural Science Foundation of China[11703075] ; National Key Basic Research Program of China (973 Program)[2015CB857100] ; National Key Basic Research and Development Program[2018YFA0404704] ; Youth Innovation Promotion Association CAS |
| WOS Research Area | Astronomy & Astrophysics |
| WOS Subject | Astronomy & Astrophysics |
| WOS ID | WOS:000507468700008 |
| Publisher | NATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES |
| Funding Organization | CAS Light of West China Program ; Heaven Lake Hundred-Talent Program of Xinjiang Uygur Autonomous Region of China ; National Natural Science Foundation of China ; National Key Basic Research Program of China (973 Program) ; National Key Basic Research and Development Program ; Youth Innovation Promotion Association CAS |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/3325 |
| Collection | 射电天文研究室_天体化学研究团组 |
| Corresponding Author | Zheng, Xu-Li |
| Affiliation | 1.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China 2.Eastern Kentucky Univ, Dept Chem, Richmond, KY 40475 USA 3.Max Planck Inst Extraterr Phys MPE, Giessenbachstr 1, D-85748 Garching, Germany 4.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 100049, Peoples R China |
| First Author Affilication | Xinjiang Astronomical Observatory, Chinese Academy of Sciences |
| Corresponding Author Affilication | Xinjiang Astronomical Observatory, Chinese Academy of Sciences |
| Recommended Citation GB/T 7714 | Zheng, Xu-Li,Quan, Dong-Hui,Zhang, Hai-Long,et al. A new data structure for accelerating kinetic Monte Carlo method[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2019,19(12):176. |
| APA | Zheng, Xu-Li,Quan, Dong-Hui,Zhang, Hai-Long,Li, Xiao-Hu,Chang, Qiang,&Sipila, Olli.(2019).A new data structure for accelerating kinetic Monte Carlo method.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,19(12),176. |
| MLA | Zheng, Xu-Li,et al."A new data structure for accelerating kinetic Monte Carlo method".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 19.12(2019):176. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Zheng-2019-A new dat（1787KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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