|New Detection of Acoustic Signatures from Solar Flares
|354, Solar MHD Theory and Observations: A High Spatial Resolution Perspective
|Donea, A.-C.; Besliu-Ionescu, D.; Cally, P.; Lindsey, C.
|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?