Transport and Distribution of Hydroxyl Radicals and Oxygen Atoms from H2O Photodissociation in the Inner Coma of Comet 67P/Churyumov–Gerasimenko

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• 作者：Ian-Lin Lai ; Cheng-Chin Su ; Wing-Huen Ip ; Chen-En Wei…
• 关键词：Comets ; Comet 67P ; Atmosphere ; Photodissociation
• 刊名：Earth, Moon, and Planets
• 出版年：2016
• 出版时间：March 2016
• 年：2016
• 卷：117
• 期：1
• 页码：23-39
• 全文大小：5,733 KB
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• 作者单位：Ian-Lin Lai (1)
  Cheng-Chin Su (2)
  Wing-Huen Ip (1) (3) (4)
  Chen-En Wei (3)
  Jong-Shinn Wu (2)
  Ming-Chung Lo (2)
  Ying Liao (5)
  Nicolas Thomas (5)
  
  1. Institute of Space Sciences, National Central University, Taoyuan City, Taiwan
  2. Department of Mechanical Engineering, National Chiao Tung University, Hsinchu City, Taiwan
  3. Institute of Astronomy, National Central University, Taoyuan City, Taiwan
  4. Space Science Institute, Macau University of Science and Technology, Taipa, Macau
  5. Physikalisches Institut, University of Bern, Bern, Switzerland
  
• 刊物类别：Physics and Astronomy
• 刊物主题：Physics
  Astronomy
  Planetology
  Extraterrestrial Physics and Space Sciences
  Astrophysics
  
• 出版者：Springer Netherlands
• ISSN：1573-0794

文摘

With a combination of the Direct Simulation Monte Carlo (DSMC) calculation and test particle computation, the ballistic transport process of the hydroxyl radicals and oxygen atoms produced by photodissociation of water molecules in the coma of comet 67P/Churyumov–Gerasimenko is modelled. We discuss the key elements and essential features of such simulations which results can be compared with the remote-sensing and in situ measurements of cometary gas coma from the Rosetta mission at different orbital phases of this comet.