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Flare Generated Shock Wave Propagation Through Solar Coronal Arcade Loops and Associated Type II Radio Burst View all abstracts by submitter

Pankaj Kumar   Submitted: 2016-06-19 18:54

This paper presents multiwavelength observations of a flare-generated type II radio burst. The kinematics of the shock derived from the type II closely match a fast EUV wave seen propagating through coronal arcade loops. The EUV wave was closely associated with an impulsive M1.0 flare without a related coronal mass ejection, and was triggered at one of the footpoints of the arcade loops in active region NOAA 12035. It was initially observed in the AIA 335 Å images with a speed of ~800 km s-1 and accelerated to ~1490 km s-1 after passing through the arcade loops. A fan-spine magnetic topology was revealed at the flare site. A small, confined filament eruption (~340 km s-1) was also observed moving in the opposite direction to the EUV wave. We suggest that breakout reconnection in the fan-spine topology triggered the flare and associated EUV wave that propagated as a fast shock through the arcade loops.

Authors: Kumar, Pankaj; Innes, D. E.; Cho, K. S.
Projects: None

Publication Status: ApJ (in press)
Last Modified: 2016-06-22 09:13
Go to main E-Print page  Unexpected spatial intensity distributions and onset timing of solar electron events observed by closely spaced STEREO spacecraft  Observing the release of twist by magnetic reconnection in a solar filament eruption  Edit Entry  Download Preprint  Submitter's Homepage Delete Entry 

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