1Purple Mountain Observatory, Chinese Academy of Science, Nanjing 210008
2Department of Physics, Nanjing Normal University, Nanjing 210087
3National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100080
Current Sheet Formation in Weakly Ionized Plasmas
JI Hai-Sheng1,3; LI Xiao-Qing2;SONG Mu-Tao1,3
1Purple Mountain Observatory, Chinese Academy of Science, Nanjing 210008
2Department of Physics, Nanjing Normal University, Nanjing 210087
3National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100080
Abstract： Using the two fluid model, the problem of two-dimensional steady-state magnetic reconnection in incompressible resistive weakly ionized plasmas is analysed. Under the strong-coupling condition such as in the Sun's photosphere, it allows us to express the current sheet analytically. In this case the current sheet scales as η1/2. Then this model is used to understand magnetic flux cancellation which is observed in the Sun's magnetograms. To account for a canceling flux of 1 x 1018Max in a time interval of 77 min, the width of the current sheet is about ten kilometers.
JI Hai-Sheng; LI Xiao-Qing;SONG Mu-Tao;. Current Sheet Formation in Weakly Ionized Plasmas[J]. 中国物理快报, 2001, 18(6): 788-789.
JI Hai-Sheng, LI Xiao-Qing, SONG Mu-Tao,. Current Sheet Formation in Weakly Ionized Plasmas. Chin. Phys. Lett., 2001, 18(6): 788-789.
2001, Vol. 18 
