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2013
Authors: Mozer F, Bale S., Bonnell J W, Chaston C., Roth I, et al.
Title: Megavolt Parallel Potentials Arising from Double-Layer Streams in the Earth’s Outer Radiation Belt
Abstract: Huge numbers of double layers carrying electric fields parallel to the local magnetic field line have been observed on the Van Allen probes in connection with in situ relativistic electron acceleration in the Earth’s outer radiation belt. For one case with adequate high time resolution data, 7000 double layers were observed in an interval of 1 min to produce a 230 000 V net parallel potential drop crossing the spacecraft. Lower resolution data show that this event lasted for 6 min and that more than 1 000 000 volts of net parallel potential crossed the spacecraft during this time. A double layer traverses the length of a magnetic field line in about 15 s and the orbital motion of the spacecraft perpendicular to the magnetic field was about 700 km during this 6 min interval. Thus, t. . .
Date: 12/2013 Publisher: Physical Review Letters DOI: 10.1103/PhysRevLett.111.235002 Available at: http://link.aps.org/doi/10.1103/PhysRevLett.111.235002
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