论文标题
太阳喷发丝的手性，旋转感和半球偏好之间的关系
The Relationship between Chirality, Sense of Rotation, and Hemispheric Preference of Solar Eruptive Filaments
论文作者
论文摘要
太阳喷发细丝的方向，手性和动力学是理解冠状质量弹出（CME）的磁场的关键，因此可以预测到达地球的CME的地理表现力。然而，混乱和争论仍然是丝手性，磁性螺旋性和喷发过程中旋转感之间的关系。为了解决观测中的歧义，在本文中，我们使用立体观测来确定细丝顶点的旋转方向以及Chen等人提出的方法。 （2014年）确定丝状手性。我们的12个爆发活动区域样本建立了牢固的一对一关系，即，在喷发期间，官方/右旋丝（位于南部/北半球的南部/北半球）从上方旋转时会顺时针/逆时针旋转，并确认了较弱的半球优先级别的菲尔斯（Syners），即朝鲜的菲尔斯（Shorlement and of）。半球，这表明Sigmoidal细丝与低洼的磁通绳有关，其轴浸入中间。旋转的结果，预计在喷发期间会逆转细丝的预计S形状。
The orientation, chirality, and dynamics of solar eruptive filaments is a key to understanding the magnetic field of coronal mass ejections (CMEs) and therefore to predicting the geoeffectiveness of CMEs arriving at Earth. However, confusion and contention remain over the relationship between the filament chirality, magnetic helicity, and sense of rotation during eruption. To resolve the ambiguity in observations, in this paper, we used stereoscopic observations to determine the rotation direction of filament apex and the method proposed by Chen et al. (2014) to determine the filament chirality. Our sample of 12 eruptive active-region filaments establishes a strong one-to-one relationship, i.e., during the eruption, sinistral/dextral filaments (located in the southern/northern hemisphere) rotate clockwise/counterclockwise when viewed from above, and corroborates a weak hemispheric preference, i.e., a filament and related sigmoid both exhibit a forward (reverse) S shape in the southern (northern) hemisphere, which suggests that the sigmoidal filament is associated with a low-lying magnetic flux rope with its axis dipped in the middle. As a result of rotation, the projected S shape of a filament is anticipated to be reversed during eruption.
