IGPP Seminar Series

Transient dipolarization in the magnetotail plasma sheet

by Andrei Rounov
IGPP, UCLA

Abstract

Although rapid (about a minute or less) reconfiguration of the magneticfield in the near-Earth plasma sheet, known as transient dipolarization, was discovered more than 40 years ago, its interpretation remains controversial. The major challenge in the interpretation is separation of temporal andspatial variations requiring multi-spacecraft observations. Simultaneous multi-point measurements in the mid-tail and near-Earth plasma sheet by the THEMIS spacecraft, to be discussed in this presentation, provide critically important data on the formation, structure, and propagation of sharp dipolarization fronts that may help resolve this decades-long controversy.
Tuesday, 20 October 2009
3853 Slichter Hall
Refreshments at 3:45 PM
Lecture at 4:00 PM