Physics
Scientific paper
Mar 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981jgr....86.1422n&link_type=abstract
Journal of Geophysical Research, vol. 86, Mar. 1, 1981, p. 1422-1436. Research sponsored by the U.S. Department of Energy.
Physics
54
Geomagnetic Tail, Interplanetary Magnetic Fields, Magnetic Signatures, Space Plasmas, Explorer 43 Satellite, Flow Velocity, Magnetohydrodynamic Flow, Polarity
Scientific paper
Plasma and magnetic field data from Imp 6 are examined statistically to study the occurrence of reconnection in the near-earth region (within approximately 20 earth radii) of the magnetotail. It is confirmed that the southward polarity of the magnetic field observed in the low-latitude magnetotail (within a few earth radii of the estimated neutral sheet position) is strongly coupled to a tailward flow of plasma, as expected from the near-earth reconnection model. It is noted, however, that reconnection is not the unique source of the tailward flow, and plasma is seen to be flowing back and forth regardless of the occurrence of near-earth reconnection. It is fast tailward flow having speeds greater than about 400 km/s that is mostly due to near-earth reconnection. There is an indication that detectability of an associated signature in the auroral zone magnetic field is related to the reconnection rate.
Hayakawa Hisao
Hones Edward W. Jr.
Nishida Akira
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