【作者】 王蜀娟；

【Author】 Wang Shujuan (Department of Applied Physics,Southwest Jiaotong University,Chengdu 610031)

【机构】 西南交通大学应用物理系；

【摘要】 太阳耀斑表现为贮存在低日冕区的能量的爆发性剧烈释放过程,非线性磁岛结合不稳定性,对理解太阳耀斑的许多特性是很重要的,它提供了一种理论研究的重要途径。本文首先讨论了在 X 型磁中性点附近,两个磁岛结合过程中的局部二维塌缩情形,从理论上导出了其剧烈的能量释放过程的时标；然后把理论估值与实测资料做了比较,表明理论分析具有一定的合理性．更多还原

【Abstract】 The solar flare phenomenon is a manifestation of an explosive release process of energy stored in the lower corona.The nonlinear coalescence instability of magnetic islands provides keys to understandling many of the characteristics of solar flares.In this paper,the two-dimensional collapse of local magnetic field near X-type neutral point has been investigated.As the result,the time scal of an explosive energy release process has been obtained.Then the theoretical results was discussed and compared with some observations.Those suggest that the theory here was reasonable to a certain extent.更多还原