摘要
本文用赣榆站所拍得的精细色球资料研究了１９９０年１０月两个活动区的复合过程，在缺少适时准确的磁图条件下，我们以ＫｉｔｔＰｅａｋ磁图为背景，巧妙运用Ｚｉｒｉｎ－Ｐｒａｔａ法则，剖析了此两区的发展过程。发现：１）所谓黑子群“碰撞”不仅包含了两黑子群因迁移运动逐渐相互靠拢、接触，还包含了新生磁流在两群边界处浮现生长以及原黑子的衰没，２）随看“碰撞”的发生，被“碰”黑子的磁流迅速衰减，这时在接触边界处，Ｈａ形态变化迅速，相隔２４小时左右的照片难以证认形态的同一性。３）在“碰撞”区可能产生较多的耀斑，４）１０月２９日发生的大宁静暗条的激活可能与该两群“碰撞”复合有关。
Using the fine structure Ha-filtergram equipped at Guanyu station Purple Mountain Observatory, the compounding process of two active regions in Oct. 1990 is investigated. Because of the lack of simultaneously fine magnetograms, these Ha-filtergrams are analysied in terms of Zirin-Prata principle, with reference to Kitt Peak's magnetograms (S. G. D. data).It is shown that:1) The so-called colliding process of two sunspots groups not only involves migrating movement, mutual approaching and contact, but also includes magnetic fluxes emergence and decay of former sunspots. 2) With the “colliding” occurring, the flux of the“collded”sunspots decays rapidly, and at the same time, at the contact boundary Ha-morphology varies quickly. Consequently it is difficult to identify the resemblance between two Ha-photographs taken even only 24 hours apart. 3) In the“colliding” interface between two sunspot groups, solar flares, in general, take place quite often. 4) On Oct. 29, an outstanding quiescent prominence was activated, which may be associated with such “colliding”compounding phenomena.
出处
《天文学报》
CSCD
北大核心
1994年第1期44-50,T004,共8页
Acta Astronomica Sinica
