Ellerman Bombs, Type II White-light Flares and Magnetic Reconnection in the Solar Lower Atmosphere
Ellerman Bombs, Type II White-light Flares and Magnetic Reconnection in the Solar Lower Atmosphere
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DOI：
10.1088/1009-9271/1/2/176
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发表时间：
2001-04
期刊：
影响因子：
--
通讯作者：
Pengfei Chen;C. Fang;M. Ding
中科院分区：
文献类型：
--
作者：
Pengfei Chen;C. Fang;M. Ding
埃勒曼炸弹和II型白光耀斑有许多共同的特征，尽管它们之间有很大的能量差距。两者都被认为是太阳低层大气局部加热的结果。本文介绍了在这样的深大气中发生的磁重联的数值模拟，目的是解释这两种现象的共同特征。我们的数值计算结果表明，假设的重联过程具有以下两个典型特征：（1）磁场重联在600- 900 s之间达到饱和，这正好是两种现象的寿命;（2）上层色球层的电离消耗了重联释放的相当大一部分能量，使得加热效应在下层色球层最为显著.详细讨论了重联模型在这两种现象中的应用。
Ellerman bombs and Type II white-light flares share many common features despite the large energy gap between them. Both are considered to result from local heating in the solar lower atmosphere. This paper presents numerical simulations of magnetic reconnection occurring in such a deep atmosphere, with the aim to account for the common features of the two phenomena. Our numerical results manifest the following two typical characteristics of the assumed reconnection process: (1) magnetic reconnection saturates in ~ 600--900 s, which is just the lifetime of the two phenomena; (2) ionization in the upper chromosphere consumes quite a large part of the energy released through reconnection, making the heating effect most significant in the lower chromosphere. The application of the reconnection model to the two phenomena is discussed in detail.