Plasma waves near the diamagnetic cavity of comet 67P
Résumé
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.
Domaines
Planète et Univers [physics]
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