SM041-0011
Investigation on kinetic processes based on MMS/Cluster joint measurements at the vicinity of the plasma sheet boundary layer
Tuesday, 15 December 2020
Poster
Olivier Le Contel1, Alessandro Retino2, Alexandra Alexandrova3, Thomas Chust4, Konrad Steinvall5, Soboh AlQeeq6, Patrick Canu2, Dominique Fontaine7, Laurent Mirioni4, Iannis S Dandouras8, Chris Carr9, Sergio Toledo Redondo10, Andrew Neil Fazakerley11, Natasha Doss12, Stefan A Kiehas13, Rumi Nakamura13, Yuri Khotyaintsev14, Frederick D Wilder15, Narges Ahmadi16, Daniel J Gershman17, Christopher T Russell18, Robert J Strangeway19, Ferdinand Plaschke20, Matthew R Argall21, Drew L Turner22, Ian J. Cohen23, James L Burch24, Roy B Torbert25, Stephen A Fuselier26, Joey Mukherjee27, Barbara L Giles17, Robert Ergun16, Per-Arne Lindqvist28 and C Philippe Escoubet29, (1)Laboratoire de Physique des Plasmas/CNRS-Ecole Polytechnique-Sorbonne Université, Paris, France, (2)Laboratoire de Physique des Plasmas, Palaiseau, France, (3)Laboratoire de Physique des Plasmas, Ecole Polytechnique, Paris, France, (4)Laboratoire de Physique des Plasmas (UMR7648), CNRS/Ecole Polytechnique/UPMC/Univ. Paris Sud/Obs. de Paris, Paris, France, (5)IRF Swedish Institute of Space Physics Uppsala, Uppsala, Sweden, (6)Laboratoire de Physique des Plasmas, Paris, France, (7)CNRS, Paris Cedex 16, France, (8)IRAP, Toulouse, France, (9)Imperial College London, London, United Kingdom, (10)University of Murcia, Murcia, Spain, (11)Mullard Space Science Lab., Dorking, United Kingdom, (12)University College London, London, United Kingdom, (13)Space Research Institute, Graz, Austria, (14)IRF Swedish Institute of Space Physics, Uppsala, Sweden, (15)University of Colorado at Boulder, Boulder, CO, United States, (16)Laboratory for Atmospheric and Space Physics, Boulder, CO, United States, (17)NASA Goddard Space Flight Center, Greenbelt, MD, United States, (18)University of California, Los Angeles, CA, United States, (19)Univ California, Los Angeles, CA, United States, (20)IWF ÖAW, Graz, Austria, (21)University of New Hampshire, Durham, NH, United States, (22)Johns Hopkins University Applied Physics Laboratory, Laurel, MD, United States, (23)The Johns Hopkins University Applied Physics Laboratory, Laurel, MD, United States, (24)Southwest Research Institute San Antonio, San Antonio, TX, United States, (25)Univ New Hampshire, Durham, NH, United States, (26)Southwest Research Institute, San Antonio, TX, United States, (27)Southwest Research Inst, San Antonio, TX, United States, (28)KTH Royal Institute of Technology, Stockholm, Sweden, (29)ESTEC/ESA, Noordwijk, Netherlands
Abstract:
On 28th of August 2018 at 5:30 UT, MMS and Cluster were located in the magnetotail at about 16 earth radii (RE). They both suddenly crossed plasma interfaces. Located near the post midnight sector, Cluster transitioned from a cold plasma sheet to a hot plasma sheet associated with a quasi-parallel earthward flow whereas MMS, located at 4 RE duskward of Cluster, transitioned from a similar cold plasma sheet to the lobe region via a very short period in a hot plasma sheet associated with a vortex-like signature. At 05:50 UT MMS returned to a hot plasma sheet and also detected a quasi-parallel earthward flow ~ 400 km/s and increased energetic ion and electron fluxes. We use measurements from both missions during this conjunction to describe the possible macroscale evolution of the magnetotail as well as some associated kinetic processes. At ion scales, we investigate the possible role of ion fire-hose instability in the plasma flow reduction. At electron scales, we analyze fast and slow non linear electrostatic waves propagating tailward which are detected in the so called electron boundary layer as well as in the hot plasma sheet. We discuss their possible generation mechanisms and link with the large scale evolution of the magnetotail.
