Physics
Scientific paper
Dec 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004agufmsm53b0428s&link_type=abstract
American Geophysical Union, Fall Meeting 2004, abstract #SM53B-0428
Physics
7835 Magnetic Reconnection, 7839 Nonlinear Phenomena, 7843 Numerical Simulation Studies, 7871 Waves And Instabilities
Scientific paper
Recently, we proposed a new possible scenario to achieve quick magnetic reconnection triggering (QMRT) even in an ion-scale current sheet. A 3D full kinetic simulation of an ion-scale current sheet with mi/m_e=400 is performed and found that the non-linear evolution of the lower-hybrid-drift instability excited at the edge region of the current sheet plays a crucial role to enable QMRT without significant anomalous transport around the neutral sheet. However, this scenario is limited to the situation under the simple 1D Harris current sheet. Yoon (2004) found that a equilibrium of the non-Harris type current sheet where the modified two stream instability is possibly excited around the neutral sheet. We are carrying out a series of 2D simulation of the Yoon's equilibrium and examine competitive processes of the lower hybrid and modified two stream instabilities. QMRT in the non-Harris current sheet will be discussed in the presentation.
Fujimoto Minoru
Shinohara Iku
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