In this Letter we report a clear and unambiguous observation of the out-of-plane quadrupole magnetic field suggested by numerical simulations in the reconnecting current sheet in the magnetic reconnection experiment. Measurements show that the Hall effect is large in the collisionless regime and becomes small as the collisionality increases, indicating that the Hall effect plays an important role in collisionless reconnection.
|Original language||English (US)|
|Journal||Physical review letters|
|State||Published - Jul 29 2005|
All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)