Impact of energetic cosmic-ray ions on astrophysical ice grains

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• 作者：Martin Mainitz ; Christian Anders ; Herbert M. Urbassek ; ^{urbassek@rhrk.uni-kl.de} ;
• 关键词：Sputtering ; Molecular dynamics ; Ice
• 刊名：Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
• 出版年：2017
• 出版时间：15 February 2017
• 年：2017
• 卷：393
• 期：Complete
• 页码：34-38
• 全文大小：903 K
• 卷排序：393

文摘

We use the REAX potential to model dissociations and reactions. An ice grain consisting of a mixture of small molecules is considered. The passage of a cosmic-ray ion initiates an ion track. The track induces a shock wave and disintegrates the grain. Abundant fragments and reaction products are detected.