MESSENGER observations of planetary ion characteristics within Kelvin-Helmholtz vortices at Mercury

Sae Aizawa, IRAP, Toulouse, France, Jim M Raines, University of Michigan Ann Arbor, Ann Arbor, MI, United States, Naoki Terada, Tohoku University, Sendai, Japan, Dominique Delcourt, LPC2E-CNRS, Orlean, France and Nicolas Andre, Institut de Recherche en Astrophysique et Planétologie, Université de Toulouse, CNRS, UPS, CNES, Toulouse, France