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Detailed Reference Information
Daly et al. 1984
Daly, P.W., Saunders, M.A., Rijnbeek, R.P., Sckopke, N. and Russell, C.T. (1984). The distribution of reconnection geometry in flux transfer events using energetic ion, plasma and magnetic data. Journal of Geophysical Research 89: doi: 10.1029/JA089iA06p03843. issn: 0148-0227.

A survey of the locations of flux transfer events at the dayside magnetopause has been undertaken with emphasis on the direction of the energetic ion anisotropy along the magnetic field. The instrument used is the medium energy particle spectrometer on board ISEE 2. The events studied are from 1977 and 1978, giving coverge over the morning and afternoon sides within latitude range -10¿ to 40¿. The anisotropy is an unambiguous indicator of the hemisphere from which the observed particles are escaping. Magnetic data from the flux gate magnetometer and plasma data from the fast plasm experiment have also been studied. The magnetic signature can be used to decide the direction of motion of the event with respect to the ambient field, while the change in plasma bulk velocity allows one to estimate the direction of magnetic tension in the reconnected field line. Apparent disagreements between the magnetic signature (positive-negative indicating northward motion) and particle anisotropy (parallel to the field indicating southern connection) are resolved by the plasma data, which show that the bulk (northward) plasma speed exceeds the Alfv¿n speed, and thus these south connected events are blown northward faster than magnetic tension pulls them southward. The magnetic signature is therefore an unreliable indication of the hemisphere of connection. With this effect taken into consideration. With this effect taken into consideration the overall pattern is that of an equatorial rather than a high-latitude source for flux transfer events.

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Abstract

Journal
Journal of Geophysical Research
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