S320p.49 — Coronal Quasi-Periodic Fast-Propagating Magnetosonic Waves Observed by SDO/AIA

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Aug 10th at 6:00 PM until 7:30 PM




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Author(s): Yuandeng Shen1

Institution(s): 1. Yunnan Observatories, Chinese Academy of Sciences

The observations of coronal quasi-periodic fast-propagating (QFP) magnetosonic waves are scare in previous articles due to the low temporal and spatial resolution of the past solar telescopes. Recently, it was detected by the high temporal and spatial resolution observations taken by the Atmospheric Imaging Assembly (AIA) on board the Solar Dynamics Observatory (SDO). Here we present two cases of such kind of QFP waves. In Case I (May 30, 2011), we analysis the periodicity of the QFP wave and the accompanying flare. It is found that almost all of the frequencies of the flare are included in the frequency spectrum of the QFP wave, suggesting their common origin. In Case II (April 23, 2012), we study the multi-wavelengths observations of the QFP wave and its interaction with a perpendicular loop system on the path. The period of the QFP wave and the accompanying flare are the same (80 seconds). Based on our observations, we propose the possible interpretations of the wave trains observed in 193 Å observations.