论文标题
关于在Maunder最低限度期间使用裸眼的黑子观测
On the use of naked-eye sunspot observations during the Maunder Minimum
论文作者
论文摘要
大约在过去的两千年中，记录了裸眼的黑子观测（NESO，以下）。这种记录是在世界各地创造的，主要是在亚洲文明中制作的，它们是在几个目录中编译的。在这项工作中，我们分析了19世纪NESO记录的日子的太阳能活动。我们发现，仅在与这些NESO事件相对应的几天的39％中记录了五个以上的黑子组。此外，关于在报告NESO的天数中观察到的最大群体，我们表明，这些群体的未校正区域低于2亿分之一的太阳能盘（MSD），总案例的3.2％，而在200至499 MSD之间为12.9％。因此，NESO记录并不意味着一定是高太阳能活动和大黑子组。因此，这些结果与最新作品的解释相矛盾，这些解释使用相同的NESO集表明，在Maunder最低限度期间的太阳活动水平仍然是一个悬而未决的问题。 NESO记录作为太阳能活动时期的最低限度支持了Maunder。
Naked-eye sunspot observations (NESO, hereafter) have been recorded for last two millennia, approximately. This kind of records were made around the world, mainly in Asian civilizations, and they are compiled in several catalogues. In this work, we analyze solar activity in days of the 19th century when NESO were recorded. We found that only more than five sunspot groups were recorded in 39 % of days corresponding to these NESO events. Furthermore, regarding the largest groups observed in days when NESO were reported, we show the uncorrected areas of these groups were below 200 millionths of solar disc (msd hereafter) in 3.2 % of total cases while it is 12.9 % for areas between 200 and 499 msd. Thus, NESO records do not imply high solar activity and big sunspot groups necessarily. Therefore, these results contradict the interpretations of recent works that, using the same NESO set, suggest the solar activity level during the Maunder Minimum is still an open question. NESO records support the Maunder Minimum as a very low solar activity period.
