Journal of astrophysics and astronomy | |
Flare Ribbon Expansion and Energy Release | |
Ayumi Asai14  Kazunari Shibata3  Takaaki Yokoyama1  Satoshi Masuda2  Masumi Shimojo4  | |
[1] Department of Earth and Planetary Science, University of Tokyo, Hongo, Bunkyo, Tokyo, 113-0033, Japan.$$;Solar-Terrestrial Environment Laboratory, Nagoya University, Toyokawa, Aichi 442-8507, Japan.$$;Kwasan and Hida Observatories, Kyoto University, Yamashina, Kyoto 607-8471, Japan.$$;Nobeyama Solar Radio Observatory, Minamisaku, Nagano, 384-1305, Japan.$$ | |
关键词: Sun: activity; Sun: flares; chromosphere; corona; X-rays; gamma rays.; | |
DOI : | |
学科分类:天文学(综合) | |
来源: Indian Academy of Sciences | |
【 摘 要 】
We report a detailed examination about the relationship between the evolution of the H𛼠flare ribbons and the released magnetic energy during the April 10 2001 flare. In the H𛼠images, several bright kernels are observed in the flare ribbons. We identified the conjugated footpoints, by analyzing the lightcurves at each H𛼠kernels, and showed their connectivities during the flare. Then, based on the magnetic reconnection model, we calculated quantitatively the released energy by using the photospheric magnetic field strengths and separation speeds of the H𛼠flare ribbons. Finally, we examined the downward motions which are observed at the H𛼠kernels. We found that the stronger the red-asymmetry tends to be associated with the brighter the H𛼠kernel.
【 授权许可】
Unknown
【 预 览 】
Files | Size | Format | View |
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RO201912040493436ZK.pdf | 252KB | download |