日本地球惑星科学連合2018年大会

講演情報

[JJ] ポスター発表

セッション記号 P (宇宙惑星科学) » P-EM 太陽地球系科学・宇宙電磁気学・宇宙環境

[P-EM19] 太陽圏・惑星間空間

2018年5月24日(木) 10:45 〜 12:15 ポスター会場 (幕張メッセ国際展示場 7ホール)

コンビーナ:坪内 健(東京工業大学理学院)、西野 真木(名古屋大学宇宙地球環境研究所)、成行 泰裕(富山大学人間発達科学部)

[PEM19-P02] Case study of wavelength 2791.6 Å at flare ribbons by IRIS

*Yu chen1Ya-Hui Yang1 (1.Graduate institute of space science, National Central University )

The upward and downward motions of chromospheric plasma, which are called chromospheric evaporation and condensation, can be observed during solar flares. The Mg II lines of IRIS provide a good opportunity to study the evolution of chromospheric plasma. Here we particularly focus on the emission property of Mg II triplet line 2791.6 Å in the 2014/10/27 M7.1 flare. To understand the behaviors of Mg II lines, two localized areas with flare brightening feature are selected for analysis. The Mg II h and k lines are also used for comparison. By combining with IRIS, GOES, and RHESSI observations, we find that the 2791.6 Å has different evolution profiles at these two areas. Possible explanations will be discussed in this study.