Magnetic Evolution of Mini-Coronal Mass Ejections

被引：10

作者：

Honarbakhsh, L. ^{[1
]}

Alipour, N. ^{[2
]}

Safari, H. ^{[2
]}

机构：

[1] Inst Adv Studies Basic Sci, Zanjan 4513766731, Iran

[2] Univ Zanjan, Dept Phys, Univ Blvd, Zanjan 4537138791, Iran

来源：

SOLAR PHYSICS | 2016年 / 291卷 / 03期

关键词：

Sun: magnetic reconnection; Sun: mini-CME; EXPLOSIVE EVENTS; ERUPTIONS; DIMMINGS; TRACKING; WAVES; JETS;

D O I：

10.1007/s11207-016-0858-5

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The present study investigates the relationship between mini-coronal mass ejections (mini-CMEs) and the evolution of their magnetic fluxes. An automatic detection algorithm was used to detect mini-dimmings in 171 images taken with the Atmospheric Imaging Assembly (AIA) onboard the Solar Dynamics Observatory (SDO). Using the difference images for the dimmings, 131 events that satisfied mini-CME signatures were selected. Changes in their magnetic structure using photospheric line-of-sight magnetograms taken with the Heliospheric and Magnetic Imager (HMI) on SDO were investigated. It was found that 27 % of the events had slight changes and 73 % showed considerable changes in magnetic flux. About 18 % of the magnetic structures evolved by cancellation and 38 % by complex flux changes.

引用

页码：941 / 952

页数：12

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