冕流与日冕物质抛射的关系  

THE RELATIONSHIP BETWEEN CORONAL STREAMERS AND CMES

作　　者：堵锦生[1] 童彝[1] 杨静[1] 伊塞列维奇 

机构地区：[1]北京师范大学天文系,北京100875 [2]俄罗斯日地物理研究所

出　　处：《紫金山天文台台刊》1999年第2期135-138,共4页

基　　金：国家自然科学基金

摘　　要：本文研究了卡林顿自转周１５９１ － １５９２ 中冕流偏振亮度的变化。冕流带偏振亮度的分布是不均匀的，不均匀度为１０ ％ － ５０ ％ 。无日冕物质抛射影响存在时，沿冕流带冕流的分布可持续稳定存在近两个太阳自转周。当一个日冕物质抛射伴随冕流产生时，冕流的经向角大小若大于２７°，可导致冕流尖角区顶部上升速度大于２ｋｍ／ｓ。The variation of the polarization brightness of coronal streamer in Carrington Rotations 1591-1592 is investigated. The distribution of the polarization brightness along streamer belts is inhomogeneous; the degree of the inhomogeneity is 10%-50%. In the absence of coronal mass ejection (CME) influence, the distribution of coronal streamers along the streamer belts can persist stable during nearly two Carrington Rotations. The rise velosity of the top of the cusp region in a coronal streamer may be more than 2km/s, if the longitude angular size is more than 27° associated with a CME occurence.

关 键 词：冕流 日冕 物质抛射 偏振亮度 日冕 

分 类 号：P182.62[天文地球—天文学]