论文标题
阐明黑子中磁场的物理特性
Clarifying Physical Properties of Magnetic Fields in Sunspots
论文作者
论文摘要
我们证明，黑子半月外边界处的径向磁场分量约为550 mx cm $^{ - 2} $，独立于黑子区域和UMBRA中的最大磁场。随着黑子区域增加到500至100000万的视觉半球（M.V.H.），黑子中的平均磁场强度略有生长，并且可能达到约900-2000 mx cm $^{ - 2} $。总磁通量弱取决于黑子中的最大场强度，并取决于斑点，即黑子数和总黑子面积。但是，总通量与黑子区域之间的关系基本上是非线性的。我们建议有关此关系的明确参数化。与黑子相关的磁通量对总磁通量的贡献很小，即使在最大太阳能活动的最大值也无法达到20％以上。
We demonstrate that the radial magnetic-field component at the outer boundary of the sunspot penumbra is about 550 Mx cm$^{-2}$ independent of the sunspot area and the maximum magnetic field in the umbra. The mean magnetic-field intensity in sunspots grows slightly as the sunspot area increases up to 500 -- 1000 millionth of visual hemisphere (m.v.h.) and may reach about 900 -- 2000 Mx cm$^{-2}$. The total magnetic flux weakly depends on the maximum field strength in a sunspot and is determined by the spottedness, i.e. the sunspot number and the total sunspot area; however, the relation between the total flux and the sunspot area is substantially nonlinear. We suggest an explicit parametrization for this relation. The contribution of the magnetic flux associated with sunspots to the total magnetic flux is small, not achieving more than 20% even at the maximum of the solar activity.
