The positive correlation between magnitude of electromagnetic fluctuations and the enhancement of reconnection rates in a laboratory plasma was investigated. The waves were identified as right-hand polarized whistler waves, propagating obliquely to the reconnecting magnetic field. The extremely small resistivity causes the magnetic field to dissipate only in very thin current sheets, which impede the mass outflow and thus limit the reconnection rate. The results show that the LHDI is present only in the low-β edge region of the current sheet, but not in the high-β central region, where the resistivity needs to be enhanced.
All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)