The Formation of a Small-Scale Filament After Flux Emergence on the Quiet Sun

The Formation of a Small-Scale Filament After Flux Emergence on the Quiet Sun
复制标题

安静太阳上通量出现后小规模细丝的形成

DOI:
10.1007/s11207-018-1311-8
复制
发表时间:
2018-06
期刊:
影响因子:
2.8
通讯作者:
Bi Yi
Bi Yi
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
Chen Hechao;Yang Jiayan;Yang Bo;Ji Kaifan;Bi Yi

文献摘要

参考文献

被引文献

相似文献

我们在2016年2月5日至6日期间观测了安静太阳上小尺度暗条的形成过程,并研究了其形成原因。最初,一个小的偶极子出现,其相关的拱丝系统被发现与覆盖的日冕场重新连接,伴随着许多极紫外亮点。当亮点消失时,许多细长的黑线形成并桥接偶极子的正磁性元件和外部负网络场。有趣的是,在通量出现后,新生暗丝的正端点区域内出现了一个反重力光球旋转运动(PRM),并持续了10多个小时。在PRM的驱动下,这些分散的暗丝逐渐沿南北方向沿着排列,最终合并成一个倒S形的暗丝。与右旋手征的灯丝,磁螺旋度计算表明,负螺旋度的量持续注入的旋转正磁性元件和积累在形成的灯丝。这些观察结果表明,扭曲的新兴领域可能会导致通过重新连接与预先存在的领域和释放其内部的磁扭曲的细丝的形成。持久的PRM可能是从光球层以下到低日冕的一个隐蔽的扭曲弛豫过程。
We present observations of the formation process of a small-scale filament on the quiet Sun during 5 - 6 February 2016 and investigate its formation cause. Initially, a small dipole emerged, and its associated arch filament system was found to reconnect with overlying coronal fields accompanied by numerous extreme ultraviolet bright points. When the bright points faded, many elongated dark threads formed and bridged the positive magnetic element of the dipole and the external negative network fields. Interestingly, an anticlockwise photospheric rotational motion (PRM) set in within the positive endpoint region of the newborn dark threads following the flux emergence and lasted for more than 10 hours. Under the drive of the PRM, these dispersive dark threads gradually aligned along the north-south direction and finally coalesced into an inverse S-shaped filament. Consistent with the dextral chirality of the filament, magnetic helicity calculations show that an amount of negative helicity was persistently injected from the rotational positive magnetic element and accumulated during the formation of the filament. These observations suggest that twisted emerging fields may lead to the formation of the filament via reconnection with pre-existing fields and release of its inner magnetic twist. The persistent PRM might trace a covert twist relaxation from below the photosphere to the low corona.
DOI: 10.1088/0004-637x/714/1/343
发表时间: 2010-05
期刊: The Astrophysical Journal
影响因子: --
作者:
Yang Guo;Yang Guo;B. Schmieder;P. Démoulin;T. Wiegelmann;G. Aulanier;Tibor Török;V. Bommier
通讯作者: Yang Guo;Yang Guo;B. Schmieder;P. Démoulin;T. Wiegelmann;G. Aulanier;Tibor Török;V. Bommier
在阳光下观察绳索切断重连形成的磁绳
DOI: 10.3847/2041-8213/aa7066
发表时间: 2017
影响因子: 7.9
作者:
Xue Zhike;Yan Xiaoli;Yang Liheng;Wang Jincheng;Zhao Li
通讯作者: Zhao Li
DOI: 10.1007/bf00670732
发表时间: 1994-11
期刊: Solar Physics
影响因子: 2.8
作者:
D. Rust;A. Kumar
通讯作者: D. Rust;A. Kumar
DOI: 10.1051/0004-6361/201629282
发表时间: 2016-11
影响因子: 6.5
作者:
P. Vemareddy;P. Démoulin
通讯作者: P. Vemareddy;P. Démoulin
太阳耀斑期间太阳黑子旋转逆转的观测
DOI: 10.1038/ncomms13798
发表时间: 2016-12-13
影响因子: 16.6
作者:
通讯作者: --