Structure of current sheets in magnetic holes at 1 AU

摘要: Current density profiles in several types of interplanetary magnetic holes have been calculated using high-resolution Imp 6 field data (12.5 vector measurements/s), assuming that the currents flow planar sheets and varies only direction normal to sheet. The planarity was verified four which were observed by two suitably spaced spacecraft. structure current ranges from very simple some complex others. Four are discussed, B nearly monotonically on each side hole. In holes, intensity but not as a result B. other changes both magnitude parallel structures found be qualitatively consistent with models Burlaga Lemaire, based self-consistent solutions Vlasov's equation Maxwell's equations. Examples irregular also presented, they shown contain multiple one another at various angles respect There is no model such present.