A new data structure for accelerating kinetic Monte Carlo method
文献类型：期刊论文
| 作者 | Zheng, Xu-Li1,4 ; Quan, Dong-Hui3,4; Zhang, Hai-Long4; Li, Xiao-Hu4; Chang, Qiang4; Sipila, Olli2
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| 刊名 | RESEARCH IN ASTRONOMY AND ASTROPHYSICS
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| 出版日期 | 2019-12-01 |
| 卷号 | 19期号:12页码:176 |
| 关键词 | astrochemistry molecular processes methods: numerical ISM: molecules ISM: abundances |
| ISSN号 | 1674-4527 |
| DOI | 10.1088/1674-4527/19/12/176 |
| 产权排序 | 1 |
| 英文摘要 | 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. |
| WOS关键词 | DENSE INTERSTELLAR CLOUDS ; GAS-GRAIN CHEMISTRY ; MODELS ; SIMULATION ; MANTLES ; PHASE |
| 资助项目 | 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研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000507468700008 |
| 出版者 | NATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES |
| 资助机构 | 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 |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/3324]  |
| 专题 | 天体化学研究团组 |
| 通讯作者 | Zheng, Xu-Li |
| 作者单位 | 1.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 100049, Peoples R China 2.Max Planck Inst Extraterr Phys MPE, Giessenbachstr 1, D-85748 Garching, Germany 3.Eastern Kentucky Univ, Dept Chem, Richmond, KY 40475 USA 4.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China |
| 推荐引用方式 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. |
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来源：新疆天文台
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