The near Earth current sheet: ISEE-1 and -2 case studies

Details The near Earth current sheet: ISEE-1 and -2 case studies The near Earth current sheet: ISEE-1 and -2 case studies

Sep 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984esasp.217..205m&link_type=abstract

In ESA Achievements of the Intern. Magnetospheric Study (IMS) p 205-208 (SEE N85-24544 14-46)

Physics

Current Sheets, Geomagnetic Tail, International Sun Earth Explorer 1, International Sun Earth Explorer 2, Current Density, Neutral Currents, Plasma Currents, Thickness

Scientific paper

Two crossings of the near Earth current sheet are examined using magnetic field and plasma data from ISEE-1 and 2. The current sheet thickness is measured to be 0.9 Re using a 2 satellite technique which greatly reduces the ambiguity of such measurements. Approximate pressure balance is found to exist between the diamagnetically dominated current sheet and surrounding, already high beta, plasma sheet. The accurate calculation of the sheet normal velocity with the two satellite technique allows the calculation of the current density distribution in the sheet. The crosstail current density is found to peak about an ion-gyroradius on both sides of the center of the sheet. A simple model consistent with these results is discussed.

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