A possible driving source for transient field line oscillations in the postmidnight sector at geosynchronous altitudes

Details A possible driving source for transient field line oscillations in the postmidnight sector at geosynchronous altitudes A possible driving source for transient field line oscillations in the postmidnight sector at geosynchronous altitudes

Nov 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996jgr...10124719s&link_type=abstract

Journal of Geophysical Research, Volume 101, Issue A11, p. 24719-24726

Physics

8

Magnetospheric Physics: Current Systems, Magnetospheric Physics: Magnetosphere-Inner, Magnetospheric Physics: Magnetospheric Configuration And Dynamics, Magnetospheric Physics: Mhd Waves And Instabilities

Scientific paper

Geosynchronous orbit data from charged particle analyzer (30- to 300-keV electron flux) and magnetometer instruments on board the 1984-129, GOES 6, GOES 5, and 1982-019 satellites distributed in the midnight-to-dawn sector are examined during a particle injection event that occurred at 0820 UT on May 21, 1986. The injection was detected by 1984-129 in the midnight sector as a dispersionless and short-lived (duration was 9 min) event. The injected electron cloud drifted eastward and was detected by 1982-019 in the dawn sector. Meanwhile, the GOES 6 and 5 satellites were in the postmidnight sector between the satellites which measured the electron flux. They observed transient field line oscillations during the periods when the azimuthal plasma pressure arising from the electron cloud was in the postmidnight sector. It is suggested that field-aligned currents are likely to be built up preferentially by a divergence of diamagnetic currents in the region where the azimuthal plasma pressure gradient dominates. It is argued that these currents excite an azimuthally polarized transient field line oscillation.

Affiliated with

Also associated with

No associations

Rating

A possible driving source for transient field line oscillations in the postmidnight sector at geosynchronous altitudes does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with A possible driving source for transient field line oscillations in the postmidnight sector at geosynchronous altitudes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A possible driving source for transient field line oscillations in the postmidnight sector at geosynchronous altitudes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1149551