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    Surface charging and electrostatic dust acceleration at the nucleus of comet 67P during periods of low activity

    Nordheim, T.A. and Jones, Geraint H. and Halekas, J.S. and Roussos, E. and Coates, Andrew J. (2015) Surface charging and electrostatic dust acceleration at the nucleus of comet 67P during periods of low activity. Planetary and Space Science , ISSN 0032-0633.

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    Abstract

    We have investigated through simulation the electrostatic charging of the nucleus of Comet 67 P/Churyumov-Gerasimenko during periods of weak outgassing activity. Specifically, we have modeled the surface potential and electric field at the surface of the nucleus during the initial Rosetta rendezvous at 3.5 AU and the release of the Philae lander at 3 AU. We have also investigated the possibility of dust acceleration and ejection above the nucleus due to electrostatic forces. Finally, we discuss these modeling results in the context of possible observations by instruments on both the Rosetta orbiter and the Philae lander.

    Metadata

    Item Type: Article
    School: Birkbeck Schools and Departments > School of Science > Earth and Planetary Sciences > UCL/Birkbeck Centre for Planetary Sciences
    Depositing User: Administrator
    Date Deposited: 10 Sep 2015 10:32
    Last Modified: 10 Sep 2015 10:32
    URI: http://eprints.bbk.ac.uk/id/eprint/12939

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