Understanding the Impact of H2 Diffusion Energy on the Formation Efficiency of H2 on the Interstellar Dust Grain Surface
文献类型：期刊论文
| 作者 | Guo, Xiaoying3; Iqbal, Wasim1,2 ; Chang, Qiang3; Li, Xiao-Hu1,2
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| 刊名 | RESEARCH IN ASTRONOMY AND ASTROPHYSICS
 |
| 出版日期 | 2024-09-01 |
| 卷号 | 24期号:9页码:095017 |
| 关键词 | astrochemistry atomic processes ISM: molecules |
| ISSN号 | 1674-4527 |
| DOI | 10.1088/1674-4527/ad707a |
| 产权排序 | 2 |
| 英文摘要 | We use microscopic Monte Carlo simulation techniques to investigate the impact of H-2 diffusion energy on the recombination efficiency of H-2 on interstellar dust grain surfaces under diffuse and translucent cloud conditions. We constructed five models representing different possible conditions encountered by adsorbed H and H-2 on interstellar dust grains. We implemented adsorption sites with multiple binding energies for surface species; the Encounter-Desorption mechanism was also included. The study focused on silicate surfaces in diffuse clouds and water ice surfaces in translucent clouds. The results show that the recombination efficiency of H-2 on dust surfaces decreases as H-2 diffusion energy increases. An interesting finding of this work is that considering different binding sites for H and H-2 gives rise to multiple steady phases, during which the recombination efficiency remains constant with a change in H-2 diffusion energy. |
| WOS关键词 | MOLECULAR-HYDROGEN FORMATION ; ENCOUNTER DESORPTION ; ABUNDANCE ; ATOMS ; GAS |
| 资助项目 | National Natural Science Foundation of China[12173023] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:001315425700001 |
| 出版者 | NATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/6990]  |
| 专题 | 天体化学研究团组 |
| 通讯作者 | Iqbal, Wasim |
| 作者单位 | 1.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China 2.Chinese Acad Sci, Key Lab Radio Astron, Urumqi 830011, Peoples R China 3.Shandong Univ Technol, Sch Phys & Optoeletron Engn, Zibo 255000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Guo, Xiaoying,Iqbal, Wasim,Chang, Qiang,et al. Understanding the Impact of H2 Diffusion Energy on the Formation Efficiency of H2 on the Interstellar Dust Grain Surface[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2024,24(9):095017. |
| APA | Guo, Xiaoying,Iqbal, Wasim,Chang, Qiang,&Li, Xiao-Hu.(2024).Understanding the Impact of H2 Diffusion Energy on the Formation Efficiency of H2 on the Interstellar Dust Grain Surface.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,24(9),095017. |
| MLA | Guo, Xiaoying,et al."Understanding the Impact of H2 Diffusion Energy on the Formation Efficiency of H2 on the Interstellar Dust Grain Surface".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 24.9(2024):095017. |
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来源：新疆天文台
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