论文标题
估计当前的螺旋性和太阳能区域的倾斜度和乔伊定律
Estimates of current helicity and tilt of solar active regions and Joy's law
论文作者
论文摘要
在太阳能活动区域中可以观察到太阳磁场的倾斜角，当前的螺旋和扭曲。我们通过两种方式对这些参数进行了估计。首先，我们考虑湍流对流细胞（超颗粒）的模型，该模型在太阳表面具有循环浮动结构。它们的螺旋特性是在旋转分层对流区的上升过程中达到的。另一个估计值是从一个说明磁性螺旋性保护的简单平均磁场模型中获得的。两种值均表明能够为可观察到的倾斜，螺旋和扭曲做出重要贡献。
The tilt angle, current helicity and twist of solar magnetic fields can be observed in solar active regions. We carried out estimates of these parameters by two ways. Firstly, we consider the model of turbulent convective cells (super-granules) which have a loop floating structure towards the surface of the Sun. Their helical properties are attained during the rising process in the rotating stratified convective zone. The other estimate is obtained from a simple mean-field dynamo model that accounts magnetic helicity conservation. The both values are shown to be capable to give important contributions to the observable tilt, helicity and twist.
