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H. S. Hudson (SSL/UCB), A. Warmuth (Astrophysical Institute Potsdam)
A preliminary statistical analysis of coronal loop oscillations observed by TRACE shows that 12/31 cases were associated with metric type~II bursts. The timing is consistent with the idea that the loop oscillations represent the passage of a disturbance launched by an eruption in an active region; the GOES classifications for these flares range from C4.2 to X20. Typically the oscillating structures are not disrupted, implying that the disturbance has passed through the medium. This is consistent with the Uchida interpretation of the disturbance as a weak fast-mode blast wave propagating in the ambient corona. We note that all twelve of the events were also associated with CMEs.
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Bulletin of the American Astronomical Society, 36 #2
© YEAR. The American Astronomical Soceity.