[IGPP Everyone] Reminder - SPACE SCIENCE SEMINAR - WINTER QUARTER - Geology 6704 - 3:30pm - Friday January 31, 2020
Marjorie Sowmendran
margie at igpp.ucla.edu
Wed Jan 29 11:00:30 PST 2020
Reminder
SPACE PHYSICS SEMINAR
DEPARTMENT OF EARTH, PLANETARY, AND SPACE SCIENCES
DEPARTMENT OF ATMOSPHERIC AND OCEANIC SCIENCES
UNIVERSITY OF CALIFORNIA, LOS ANGELES
(AOS M275B, EPSS M288B)
Kinetics of solar wind discontinuities
Anton Artemyev
UCLA, EPSS
ABSTRACT
Because solar wind plasma flow transports the entire spectrum of magnetic field fluctuations (from low-frequency inertial range to electron kinetic range), it is a natural laboratory for plasma turbulence investigation. Among the various wave modes and coherent plasma structures that contribute to this spectrum, one of the most important solar wind elements is ion-scale solar wind discontinuities. These structures, which carry very intense current, have been considered as a free energy source for plasma instabilities that contribute to solar wind heating. Investigations of such discontinuities have been mostly focused on their magnetic field signatures; much less is known about plasma kinetics around them. This presentation discusses statistics of such discontinuities observed around the Earth (~1 AU) by ARTEMIS and MMS mission and around the Mars (~1.5AU) by Maven mission. The main focus is on their kinetic structure and force balance.
Friday, January 31, 2020
Room 6704 Geology
3:30 - 5:00 PM
In-Charge: C. T. Russell
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