THEMIS Observations of Current Sheet Flapping

Details THEMIS Observations of Current Sheet Flapping THEMIS Observations of Current Sheet Flapping

Dec 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008agufmsm23b1708k&link_type=abstract

American Geophysical Union, Fall Meeting 2008, abstract #SM23B-1708

Physics

2700 Magnetospheric Physics (6939), 2740 Magnetospheric Configuration And Dynamics, 2744 Magnetotail, 2764 Plasma Sheet, 2784 Solar Wind/Magnetosphere Interactions

Scientific paper

We report on a 4-hour interval of periodic current sheet flapping observed by the three inner THEMIS probes (P3, 4 and 5) and the outermost probe P1 (at X=-24 RE). These probes were located post-midnight in radial alignment. Substorm onsets bounded the interval of flapping. Several substorm-like activations were observed as the current sheet kinks propagated past the spacecraft. The field at the location of the inner probes dipolarized and disrupted the kink structure locally, but did not appear to disrupt the generation of the periodic kinks. This is strong evidence that the periodic kinks were unrelated to the geomagnetic activity occurring in the post-midnight sector. THEMIS probe P2 was located in the near-Earth, pre-midnight sector, and did not observe kinks. This suggests the periodic kinks were generated near the midnight meridian and propagated in one direction, eastward. Using auroral imagery, ground magnetometers, and multi-point magnetospheric measurements, we discuss the source of the kink structures, the relationship of the flapping to geomagnetic activity, and examine the role of external solar wind driving.

Affiliated with

Also associated with

No associations

Rating

THEMIS Observations of Current Sheet Flapping 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 THEMIS Observations of Current Sheet Flapping, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and THEMIS Observations of Current Sheet Flapping will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1095107