NSSC OpenIR  > 空间科学部
Properties of a Small-scale Short-duration Solar Eruption with a Driven Shock
Ying, Beili; Feng, Li; Lu, Lei; Zhang, Jie; Magdalenic, Jasmina; Su, Yingna; Su, Yang; Gan, Weiqun
作者部门空间科学部
发表期刊ASTROPHYSICAL JOURNAL
2018
卷号856期号:1页码:24
ISSN0004-637X
语种英语
关键词Shock Waves Sun: Corona Sun: Coronal Mass Ejections (Cmes) Sun: Flares
摘要Large-scale solar eruptions have been extensively explored over many years. However, the properties of small-scale events with associated shocks have rarely been investigated. We present analyses of a small-scale, short-duration event originating from a small region. The impulsive phase of the M1.9-class flare lasted only four minutes. The kinematic evolution of the CME hot channel reveals some exceptional characteristics, including a very short duration of the main acceleration phase (<2 minutes), a rather high maximal acceleration rate (similar to 50 km s(-2)), and peak velocity (similar to 1800 km s(-1)). The fast and impulsive kinematics subsequently results in a piston-driven shock related to a metric type II radio burst with a high starting frequency of similar to 320 MHz of the fundamental band. The type II source is formed at a low height of below 1.1. R-circle dot less than similar to 2 minutes after the onset of the main acceleration phase. Through the band-split of the type II burst, the shock compression ratio decreases from 2.2 to 1.3, and the magnetic field strength of the shock upstream region decreases from 13 to 0.5 Gauss at heights of 1.1-2.3 R-circle dot. We find that the CME (similar to 4 x 10(30) erg) and flare (similar to 1.6 x 10(30) erg) consume similar amounts of magnetic energy. The same conclusion for large-scale eruptions implies that small-and large-scale events possibly share a similar relationship between CMEs and flares. The kinematic particularities of this event are possibly related to the small footpoint-separation distance of the associated magnetic flux rope, as predicted by the Erupting Flux Rope model.
收录类别SCI
文献类型期刊论文
条目标识符http://ir.nssc.ac.cn/handle/122/6240
专题空间科学部
通讯作者Ying, Beili; Feng, Li; Lu, Lei; Zhang, Jie; Magdalenic, Jasmina; Su, Yingna; Su, Yang; Gan, Weiqun
推荐引用方式
GB/T 7714
Ying, Beili,Feng, Li,Lu, Lei,et al. Properties of a Small-scale Short-duration Solar Eruption with a Driven Shock[J]. ASTROPHYSICAL JOURNAL,2018,856(1):24.
APA Ying, Beili.,Feng, Li.,Lu, Lei.,Zhang, Jie.,Magdalenic, Jasmina.,...&Gan, Weiqun.(2018).Properties of a Small-scale Short-duration Solar Eruption with a Driven Shock.ASTROPHYSICAL JOURNAL,856(1),24.
MLA Ying, Beili,et al."Properties of a Small-scale Short-duration Solar Eruption with a Driven Shock".ASTROPHYSICAL JOURNAL 856.1(2018):24.
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
2018856124.pdf(8764KB)期刊论文作者接受稿开放获取CC BY-NC-SA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
[Ying, Beili]的文章
[Feng, Li]的文章
[Lu, Lei]的文章
百度学术
百度学术中相似的文章
[Ying, Beili]的文章
[Feng, Li]的文章
[Lu, Lei]的文章
必应学术
必应学术中相似的文章
[Ying, Beili]的文章
[Feng, Li]的文章
[Lu, Lei]的文章
相关权益政策
暂无数据
收藏/分享
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。