Abstract : On October 19th 2014, Mars experienced a close encounter with Comet C/2013 A1 (Siding Spring), at a distance of ~138,000 km. The coma washed over Mars and the planet passed directly through the cometary debris stream, producing significant effects in Mars' upper atmosphere. We present here an overview of ionospheric measurements performed during the comet encounter with Mars Express, MAVEN, and Mars Reconnaissance Orbiter. We discuss the comet's influence on the ionosphere through different processes that work at different altitudes: magnetospheric disturbances, impact of cometary pickup ions, and deposition of cometary dust.
Type de document :
Communication dans un congrès
European Planetary Science Congress 2017, Sep 2017, Riga, Latvia. European Planetary Science Congress 2017, 11, pp.EPSC2017-131, 2017, EPSC Abstracts
https://hal-insu.archives-ouvertes.fr/insu-01666361
Contributeur : Catherine Cardon
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Soumis le : lundi 18 décembre 2017 - 11:42:09
Dernière modification le : mercredi 19 septembre 2018 - 01:23:40
Olivier Witasse, B. Sánchez-Cano, Gregorio Molina-Cuberos, Pierre-Louis Blelly, M. Lester, et al.. Comet Siding Spring's influence on the Mars' ionosphere. European Planetary Science Congress 2017, Sep 2017, Riga, Latvia. European Planetary Science Congress 2017, 11, pp.EPSC2017-131, 2017, EPSC Abstracts. 〈insu-01666361〉
