Related Experiment Video
Updated: Feb 5, 2026

External Excitation of Neurons Using Electric and Magnetic Fields in One- and Two-dimensional Cultures
Published on: May 7, 2017
A Case Study of Connection Between Ground Magnetic Field Perturbations and Tail Current Sheet Bursty Flows at X = -60
Chih-Ping Wang1, Xiaoyan Xing2, Yi-Hsin Liu3
1Department of Atmospheric and Oceanic Sciences, University of California, Los Angeles, CA, USA.
Abstract:
We report the first observations that connect a burst of fast flows and Pi2 fluctuations in the midtail current sheet at X ~-60 RE with ground magnetic negative bays and Pi2 pulsations at high latitudes near 70°. Both the flow burst and negative bays occurred around midnight and were isolated and lasted for ~10 min. The flow burst had the characteristics of a low-density plasma bubble. It was moving earthward at ~340 km/s and was accompanied by field-aligned currents. The timing and equatorward motion of magnetic bays can be accounted for by this earthward moving bubble. Enhanced Pi2 fluctuations were observed within both the bubble and the magnetic bays. Pressure anisotropy with higher parallel pressure was observed associated with the flow burst and was firehose unstable. We discuss firehose instability as one of the possible mechanisms for the Pi2 fluctuations.
Related Concept Videos
Magnetic Field Of A Current Loop
Force On A Current Loop In A Magnetic Field
Torque On A Current Loop In A Magnetic Field
Consider a rectangular current-carrying loop containing N turns of wire, placed in a uniform magnetic field. The net force on a current-carrying loop...
Connective Tissue Fibers and Ground Substance
Flow Sheet
Here's a closer look at the examples of flowsheets commonly used by nurses:
Graphic Sheet Documentation:
Magnetic Fields
A magnetic field is defined by the force that a charged particle experiences...

