A SOLAR TYPE II RADIO BURST FROM CORONAL MASS EJECTION-CORONAL RAY INTERACTION: SIMULTANEOUS RADIO AND EXTREME ULTRAVIOLET IMAGING

作者：Chen, Yao^*; Du, Guohui; Feng, Li; Feng, Shiwei; Kong, Xiangliang; Guo, Fan; Wang, Bing; Li, Gang

来源：Astrophysical Journal, 2014, 787(1): 59.

DOI：10.1088/0004-637X/787/1/59

• shock waves
• Sun: corona
• Sun: coronal mass ejections (CMEs)
• Sun: radio radiation

Simultaneous radio and extreme ultraviolet (EUV)/white-light imaging data are examined for a solar type II radio burst occurring on 2010 March 18 to deduce its source location. Using a bow-shock model, we reconstruct the three-dimensional EUV wave front (presumably the type-II-emitting shock) based on the imaging data of the two Solar TErrestrial RElations Observatory spacecraft. It is then combined with the Nancay radio imaging data to infer the three-dimensional position of the type II source. It is found that the type II source coincides with the interface between the coronal mass ejection (CME) EUV wave front and a nearby coronal ray structure, providing evidence that the type II emission is physically related to the CME-ray interaction. This result, consistent with those of previous studies, is based on simultaneous radio and EUV imaging data for the first time.

• 出版日期2014-5-20
• 单位山东大学; 中国科学院紫金山天文台