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Paper: |
New Detection of Acoustic Signatures from Solar Flares |
Volume: |
354, Solar MHD Theory and Observations: A High Spatial Resolution Perspective |
Page: |
204 |
Authors: |
Donea, A.-C.; Besliu-Ionescu, D.; Cally, P.; Lindsey, C. |
Abstract: |
With the advancement of local helioseismic techniques such as helioseismic holography we have now detected numerous seismic sources of varying size and intensity produced by solar flares. We have performed a systematic survey of the SOHO-MDI database in search for seismic waves from X-class flares produced during 1996 – 2005. The detection of acoustically active flares has opened a new and promising connection between helioseismology and flare physics. The main question we ask is: why are some large flares acoustically active while most are acoustically inactive? We also address questions such as: Is photospheric heating by high-energy protons a major factor in seismic emission from flares? What is the effect of magnetic fields in the acoustics of a flare? |
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