论文标题
通过使用高分辨率数据库来研究黑子基团的蒙布拉尔区域的衰减率
Study of the decay rates of the umbral area of sunspot groups by using a high resolution database
论文作者
论文摘要
黑子组的出现和衰减是太阳能动力模型的重要组成部分。关于活动区域演变的两种不同类型的研究。其中一个是基于较少的空间分辨率的数据，另一个使用具有较低空间分辨率的更多数据。本研究的输入数据允许在空间和时间上进行高分辨率的研究。 SOHO脱骨黑子数据库（SDD）的时间分辨率是一个半小时，也可以识别所有具有位置，面积和磁性极性的单个黑子。已经选择了200多个黑子组，它们在太阳盘上具有明显的最大值，并且在至少四天内可以观察到其蒙布拉尔区域的减小。通过使用两个数据计算衰减率：蒙布拉尔面积和含有黑子的数量 - 这些衰减速率是针对黑子组的总蒙布拉尔及其领先及其铅和以下部分计算的。衰减率具有线性面积的依赖性，并且以下部分比领先的部分更高。
The emergence and decay of the sunspot groups are important components of the solar dynamo models. There are two different types of studies on the evolution of active regions. One of them is based on fewer data with higher spatial resolution, the other one uses more data with lower spatial resolution. The input data of the present study allow the investigation with high-resolution both spatially and temporally. The temporal resolution of the SoHO Debrecen Sunspot Database (SDD) is one and a half hours, and it also makes possible to identify all individual sunspots with the position, area, and magnetic polarity. More than 200 sunspot groups have been selected, which have clear maxima on the solar disc, and the decrease of their umbral area is observable during at least four days. The decay rates were calculated by using two data: the umbral area and the number of contained sunspots -- these decay rates were computed for the total umbral area of sunspot groups and their leading and following parts. The decay rate has a linear area dependency, and it is higher for the following part than for the leading one.
