The variation of reconnection rate at the dayside magnetopause and cusp ion precipitation

Details The variation of reconnection rate at the dayside magnetopause and cusp ion precipitation The variation of reconnection rate at the dayside magnetopause and cusp ion precipitation

Oct 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992jgr....9714841l&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 97, no. A10, p. 14,841-14,847.

Physics

124

Daytime, Flux Transfer Events, Magnetic Field Reconnection, Magnetopause, Particle Precipitation, Polar Cusps, Dmsp Satellites, Magnetic Signatures

Scientific paper

A method is presented which allows estimation of the variation of the rate of magnetic reconnection at the dayside magnetopause. This is achieved using observations of the cusp particle precipitation made by low-altitude polar-orbiting spacecraft. In this paper we apply the technique to a previously published example of a cusp intersection by the DMSP F7 satellite. It is shown that the cusp signature in this case was produced by three separate bursts of reconnection which were of the order of 10 min apart, each lasting roughly 1 min. This is similar to the variation of reconnection rate which is required to explain typical flux transfer event signatures at the magnetopause.

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