A Study of the 2012 January 19 Complex Type II Radio Burst Using Wind, SOHO, and STEREO Observations

被引：0
|
作者：
Teklu, T. B. [1 ]
Gholap, A. V. [1 ]
Gopalswamy, N. [2 ]
Yashiro, S. [2 ]
Makela, P. [2 ]
Akiyama, S. [2 ]
Thakur, N. [2 ]
Xie, H. [2 ]
机构：
[1] Univ Addis Ababa, Dept Phys, Addis Ababa, Ethiopia
[2] NASA, Goddard Space Flight Ctr, Heliospher Div, Solar Phys Lab, Greenbelt, MD USA
来源：
2016 URSI ASIA-PACIFIC RADIO SCIENCE CONFERENCE (URSI AP-RASC) | 2016年
关键词：
coronal mass ejection; type II radio burst; shock; SUN;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We report on a case study of the complex type II radio burst of 2012 January 19 and its association with a white light coronal mass ejection (CME). The complexity can be described as the appearance of an additional type H burst component and strong intensity variation. The dynamic spectrum shows a pair of type II bursts with fundamental harmonic structures, one confined to decameter-hectometric (DH) wavelengths and the other extending to kilometric (km) wavelengths. By comparing the speeds obtained from white-light images with that speed of the shock inferred from the drift rate, we show that the source of the short-lived DH component is near the nose.
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页码：1250 / 1253
页数：4
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