YNAO OpenIR  > 太阳物理研究组
H alpha dimmings associated with the X1.6 flare and halo coronal mass ejection on 2001 October 19
Jiang YC(姜云春)1,2; Ji, HS1; Wang, HM1; Chen HD(陈华东)2; Jiang, YC (reprint author), New Jersey Inst Technol, Big Bear Solar Observ, 40386 N Shore Lane, Big Bear City, CA 92314 USA.
发表期刊ASTROPHYSICAL JOURNAL
2003-11-10
卷号597期号:2页码:L161-L164
DOI10.1086/379756
产权排序第2完成单位
收录类别SCI
关键词Sun : Activity Sun : Coronal Mass Ejections (Cmes) Sun : Filaments Sun : Flares Sun : Magnetic Fields
摘要As the optical counterpart of coronal dimmings, we present the first direct evidence of Halpha dimmings associated with the X1.6 flare, filament eruption, and coronal mass ejection (CME) that occurred on 2001 October 19. As two main Halpha flare ribbons parallel to the erupting filament slowly separated, two other ribbons first quickly expanded near the feet of the filament, then their interiors substantially dimmed and became darker than the preflare brightness. This formed two dimming regions with sharp bright edges. The two Halpha dimmings were different from the flare nimbus and the Halpha darkenings found by Ellison, McKenna, & Reid and Neidig et al., respectively, but similar to the coronal "double dimmings" studied by Sterling & Hudson. The coronal dimmings of the event were also observed in 171 Angstrom images from the Transition Region and Coronal Explorer (TRACE). The 171 Angstrom and Halpha dimmings showed very similar evolutions and occurred at the same two sites with opposite magnetic polarities. They formed in the course of the filament eruption, and after the eruption, some 171 Angstrom loops of the postflare arcade developed to connect their inner edges while some loops with footpoints near their outer edges disappeared. Observations from the Solar and Heliospheric Observatory Extreme-ultraviolet Imaging Telescope (SOHO/EIT) showed more extended dimmings associated with the eruption. Only a small portion of EIT dimmings was cospatial with the Halpha dimmings, while the major other portion was associated with the disappeared 171 Angstrom loops. These joint observations are interpreted by using the flux rope model of CMEs, in which the Halpha dimmings represent the evacuated feet of the erupted flux rope. The mass supply of the halo CME could be coming from both the erupted flux rope itself and the lost material close to the flare footpoint regions as shown by Halpha dimmings.
语种英语
学科领域Astronomy & Astrophysics
文章类型Article
ISSN0004-637X
URL查看原文
WOS记录号WOS:000186433200019
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]MAGNETIC RECONNECTION
引用统计
文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/6060
专题太阳物理研究组
通讯作者Jiang, YC (reprint author), New Jersey Inst Technol, Big Bear Solar Observ, 40386 N Shore Lane, Big Bear City, CA 92314 USA.
作者单位1.Big Bear Solar Observatory, New Jersey Institute of Technology, 40386 North Shore Lane, Big Bear City, CA 92314-9672
2.National Astronomical Observatory/Yunnan Observatory, Chinese Academy of Sciences, P.O. Box 110, Kunming 650011, China
推荐引用方式
GB/T 7714
Jiang YC,Ji, HS,Wang, HM,et al. H alpha dimmings associated with the X1.6 flare and halo coronal mass ejection on 2001 October 19[J]. ASTROPHYSICAL JOURNAL,2003,597(2):L161-L164.
APA Jiang YC,Ji, HS,Wang, HM,Chen HD,&Jiang, YC .(2003).H alpha dimmings associated with the X1.6 flare and halo coronal mass ejection on 2001 October 19.ASTROPHYSICAL JOURNAL,597(2),L161-L164.
MLA Jiang YC,et al."H alpha dimmings associated with the X1.6 flare and halo coronal mass ejection on 2001 October 19".ASTROPHYSICAL JOURNAL 597.2(2003):L161-L164.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
Hα Dimmings Associat(236KB)期刊论文作者接受稿开放获取CC BY-NC-SA浏览 请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Jiang YC(姜云春)]的文章
[Ji, HS]的文章
[Wang, HM]的文章
百度学术
百度学术中相似的文章
[Jiang YC(姜云春)]的文章
[Ji, HS]的文章
[Wang, HM]的文章
必应学术
必应学术中相似的文章
[Jiang YC(姜云春)]的文章
[Ji, HS]的文章
[Wang, HM]的文章
相关权益政策
暂无数据
收藏/分享
文件名: Hα Dimmings Associated with the X1.6 Flare and Halo Coronal Mass Ejection on 2001 October 19.pdf
格式: Adobe PDF
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。