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Elbereth conference 2021

8–12 févr. 2021
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Fuseau horaire Europe/Paris

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Investigation of the energy conversion associated with a series of dipolarization fronts observed by MMS

10 févr. 2021, 15:00
15m
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Oral presentation Astrophysics Talk

Orateur

Soboh AlQeeq (LPP)

Description

In July 2017, the MMS constellation was in the magnetotail with an apogee of 25 Earth radii and an average inter-satellite distance of 10 km (i.e. at electron scales). On 23 July around 16:19 UT, MMS was located at the edge of the current sheet which was in a quasi-static state. Then, MMS suddenly entered in the central plasma sheet and detected the local onset of a small substorm as indicated by the AE index (~400 nT). Fast earthward plasma flows were measured for about 1 hour starting with a period of quasi-steady flow and followed by a saw-tooth like series of fast flows associated with dipolarization fronts. This plasma transport sequence finished with a flow reversal still occurring close to the magnetic equator. In the present study, we investigate the energy conversion processes at ion and electron scales for these different phases with particular attention on the processes in the vicinity of the dipolarization fronts.

Field Not in the above

Auteurs principaux

Soboh AlQeeq (LPP) Prof. Olivier Lecontel (Laboratoire de Physique des Plasmas, Paris, France) Prof. Patrick Canu (Laboratoire de Physique des Plasmas, Paris, France) Prof. Retino Alessandro (Laboratoire de Physique des Plasmas, Paris, France) Prof. Thomas Chust (Laboratoire de Physique des Plasmas, Paris, France) Prof. Laurent Mirioni (Laboratoire de Physique des Plasmas, Paris, France) Prof. Yuri Khotyaintsev (Swedish Institute of Space Physics, Uppsala, Sweden) Prof. Rumi Nakamura (Space Research Institute, Austrian Academy of Sciences, Graz, Austria) Prof. Frederick Wilder (Laboratory of Atmospheric and Space Physics, Colorado, USA) Prof. Ahmadi Narges (Laboratory of Atmospheric and Space Physics, Colorado, USA) Prof. H. Y. Wei (Institute of Geophysics and Planetary Physics, Los Angeles, USA) Prof. Argall Matthew (Space Science Center and Department of Physics, University of New Hampshire, Durham) Prof. David Fischer (Space Research Institute, Austrian Academy of Sciences, Graz, Austria) Prof. Daniel J. Gershman (NASA Goddard Space Flight Center, Greenbelt, MD, USA) Prof. Jim Burch (Southwest Research Institute, San Antonio, Texas, USA) Prof. Roy Torbert (Space Science Center and Department of Physics, University of New Hampshire, Durham) Barbara Giles (NASA Goddard Space Flight Center, Greenbelt, MD, USA) Prof. Steven Fuselier (Southwest Research Institute, San Antonio, Texas, USA) Prof. Robert Ergun (Laboratory of Atmospheric and Space Physics, Colorado, USA) Prof. Per-Arne Lindqvist (Space and Plasma Group, Royal Institute of Technology, Stockholm, Sweden) Prof. Drew L Turner (Aerospace Corporation, El Segundo, California, USA) Prof. Cohen Ian (The Johns Hopkins University Applied Physics Laboratory, Laurel, Maryland, USA)

Documents de présentation

Elbereth_conf._2021_S. Alqeeq.pdf
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