MHD simulation of the Bastille day event
MHD simulation of the Bastille day event
复制标题
巴士底日事件的 MHD 模拟
DOI:
10.1063/1.4943803
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发表时间:
2016
期刊:
影响因子:
--
通讯作者:
P. Riley
中科院分区:
文献类型:
--
作者:
J. Linker;T. Török;C. Downs;R. Lionello;V. Titov;R. Caplan;Z. Mikić;P. Riley
We describe a time-dependent, thermodynamic, three-dimensional MHD simulation of the July 14, 2000 coronal mass ejection (CME) and flare. The simulation starts with a background corona developed using an MDI-derived magnetic map for the boundary condition. Flux ropes using the modified Titov-Demoulin (TDm) model are used to energize the pre-event active region, which is then destabilized by photospheric flows that cancel flux near the polarity inversion line. More than 1033 ergs are impulsively released in the simulated eruption, driving a CME at 1500 km/s, close to the observed speed of 1700km/s. The post-flare emission in the simulation is morphologically similar to the observed post-flare loops. The resulting flux rope that propagates to 1 AU is similar in character to the flux rope observed at 1 AU, but the simulated ICME center passes 15° north of Earth.