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Plasma waves near the diamagnetic cavity of comet 67P

Abstract : We report the detection of large-amplitude, quasi-harmonic density-fluctuations with associated magnetic field oscillations in the region surrounding the diamagnetic cavity of comet 67P. Typical frequencies are 0.1 Hz and there is a 90° phase lag between density and magnetic field fluctuations. We speculate that these are possibly dissipative waves associated with the steepened structures surrounding the diamagnetic cavity.
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https://hal-insu.archives-ouvertes.fr/insu-03565614
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Submitted on : Friday, February 11, 2022 - 11:08:58 AM
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Elias Odelstad, Anders Eriksson, Tomas Karlsson, Hugo Breuillard, Charlotte Goetz, et al.. Plasma waves near the diamagnetic cavity of comet 67P. European Planetary Science Congress 2018, Sep 2018, Berlin, Germany. 18 pp. ⟨insu-03565614⟩

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