Five spacecraft observations of oppositely directed exhaust jets from a magnetic reconnection X-line extending > 4.26 × 106 km in the solar wind at 1 AU

Details Five spacecraft observations of oppositely directed exhaust jets from a magnetic reconnection X-line extending > 4.26 × 106 km in the solar wind at 1 AU Five spacecraft observations of oppositely directed exhaust jets from a magnetic reconnection X-line extending > 4.26 × 106 km in the solar wind at 1 AU

Oct 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007georl..3420108g&link_type=abstract

Geophysical Research Letters, Volume 34, Issue 20, CiteID L20108

Physics

Plasma Physics

17

Space Plasma Physics: Magnetic Reconnection (2723, 7526), Interplanetary Physics: Solar Wind Sources, Interplanetary Physics: Interplanetary Magnetic Fields, Interplanetary Physics: Discontinuities (7811)

Scientific paper

Observations of oppositely directed plasma jets within an extended, bifurcated current sheet in the solar wind by a flotilla of five well-separated spacecraft (STEREO A and B, ACE, Wind and Geotail) on 11 March 2007 demonstrate that magnetic reconnection X-lines in the solar wind can extend to distances at least as great as 4.26 × 106 km (0.0284 AU) in the presence of a significant and variable guide field. The observations also indicate that reconnection in the solar wind can persist for at least 5 hours and 20 minutes. These minimum values are the largest yet obtained from direct measurements of reconnection exhaust flows in a space plasma. Both dynamic processes in the reconnection region and the spherical expansion of the solar wind probably contribute to the production of long X-lines in the solar wind.

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