Transport and distribution of hydroxyl radicals and oxygen atoms from H2O photodissociation in the inner coma of comet 67P/Churyumov–G erasimenko

Ian Lin Lai; Cheng Chin Su; Wing Huen Ip; Chen En Wei; Jong Shinn Wu; Ming Chung Lo; Ying Liao; Nicolas Thomas

doi:10.1007/s11038-016-9481-6

Transport and distribution of hydroxyl radicals and oxygen atoms from H₂O photodissociation in the inner coma of comet 67P/Churyumov–G erasimenko

Ian Lin Lai, Cheng Chin Su, Wing Huen Ip, Chen En Wei, Jong Shinn Wu, Ming Chung Lo, Ying Liao, Nicolas Thomas

Graduate Institute of Astronomy

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

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.

Original language	English
Pages (from-to)	23-39
Number of pages	17
Journal	Earth, Moon and Planets
Volume	117
Issue number	1
DOIs	https://doi.org/10.1007/s11038-016-9481-6
State	Published - Mar 2016

Keywords

Atmosphere
Comet 67P
Comets
Photodissociation

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10.1007/s11038-016-9481-6

Cite this

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abstract = "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.",

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AU - Lai, Ian Lin

AU - Su, Cheng Chin

AU - Ip, Wing Huen

AU - Wei, Chen En

AU - Wu, Jong Shinn

AU - Lo, Ming Chung

AU - Liao, Ying

AU - Thomas, Nicolas

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AB - 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.

KW - Atmosphere

KW - Comet 67P

KW - Comets

KW - Photodissociation

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