Effects of the secular magnetic variation on the distribution function of inner-zone protons.
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Engineering topics
Publications and source records attributed to Kivelson, M. G..
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Ogo 5 magnetic-field and energetic-electron (E greater than 50 keV) data are used to study both the quiet-time, steady-state configuration of the outer magnetosphere or near tail region near midnight and the disturbed time changes of this configuration. The nighttime cusp is found to be a distinct feature within the plasma sheet at quiet times but indistinguishable from the plasma sheet at disturbed times. The sequence of thinning and expansion of the plasma sheet in this region in association with the substorms is studied. The response of the plasma sheet in the near tail at about 10 earth radii is found to be similar to that in the more distant tail at more than 20 earth radii. Finally, the nature of field-aligned currents flowing on the plasma-sheet boundary is investigated. Assuming infinite current sheets, the sheet current density at Ogo 5 is found to be approximately .01 A/m.
Multiple magnetopause crossings in equatorial plane by OGO 5, showing magnetopause motion composed of two oscillations
Magnetopause inward motion before substorm, showing association with interplanetary field vertical component reversal
Magnetopause inward motion preceding magnetic storms observed by means of OGO-E magnetometer
Atmospheric models for magnetospheric instabilities and magnetopause fine structure