JpGU-AGU Joint Meeting 2017

Presentation information

[EE] Oral

P (Space and Planetary Sciences) » P-EM Solar-Terrestrial Sciences, Space Electromagnetism & Space Environment

[P-EM13] [EE] Exploring space plasma processes with Magnetospheric Multiscale (MMS) mission

Sat. May 20, 2017 9:00 AM - 10:30 AM 105 (International Conference Hall 1F)

convener:Hiroshi Hasegawa(Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency), Thomas Earle Moore(NASA Goddard Space Flight Ctr), Benoit Lavraud(IRAP), Seiji Zenitani(NAOJ National Astronomical Observatory of Japan), Chairperson:Hiroshi Hasegawa(Institute of Space and Astronautical Science, JAXA)

9:00 AM - 9:15 AM

[PEM13-01] Advances in Magnetic Reconnection with Magnetospheric Multiscale

★Invited papers

*Burch L James1 (1.Southwest Research Institute)

Keywords:Magnetic Reconnection, Earth's Magnetopause, Wave-particle Interactions

Magnetospheric Multiscale (MMS) has completed its exploration of magnetic reconnection at the Earth's dayside magnetopause. It has now begun the complementary exploration of reconnection in the magnetotail. At the dayside magnetopause MMS has demonstrated the central role played by electron kinetic-scale physics. Mixing of magnetosheath and magnetospheric electrons leads to non-gyrotropic distributions that produce the reconnection current and electric field. Dissipation caused by these phenomena (J dot E > 0) absorbs magnetic energy causing build-up of heat and particle kinetic energy mainly through wave-particle interactions. Reconnection was also observed to occur within Kelvin-Helmholtz vortices and within flux-transfer events. Numerous bow-shock crossings have revealed electron acceleration by whistler waves and localized J dot E dissipation. This paper provides highlights of the accomplishments of MMS to date and describes how reconnection proceeds through intense and highly localized events within the larger electron dissipation region.