Quasi-periodic Pulsations before and during a Solar Flare in AR 12242

• Published in: The Astrophysical journal Vol. 878; no. 2; pp. 78 - 89
• Main Authors: Chen, Xingyao, Yan, Yihua, Tan, Baolin, Huang, Jing, Wang, Wei, Chen, Linjie, Zhang, Yin, Tan, Chengming, Liu, Donghao, Masuda, Satoshi
• Format: Journal Article
• Language: English
• Published: Philadelphia The American Astronomical Society 20.06.2019; IOP Publishing
• Subjects: Astrophysics; Coronal loops; Plasmas (physics); Radio imagery; Solar flares; Sun: flares; Sun: oscillations; Sun: radio radiation; Sunspots

Quasi-periodic pulsations (QPPs) are frequently observed in solar flares, which may reveal some essential characteristics of both thermal and nonthermal energy releases. This work presents multi-wavelength imaging observations of an M8.7 flare in active region AR 12242 on 2014 December 17. We found...