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Title:
New Detection of Acoustic Signatures from Solar Flares
Authors:
Donea, A. C.; Besliu-Ionescu, D.; Cally, P.; Lindsey, C.
Publication:
Solar MHD Theory and Observations: A High Spatial Resolution Perspective ASP Conference Series, Vol. 354, Proceedings of the Conference Held 18-22 July, 2005, at the National Solar Observatory, Sacramento Peak, Sunspot, New Mexico, USA. Edited by J. Leibacher, R. F. Stein, and H. Uitenbroek. San Francisco: Astronomical Society of the Pacific, 2006., p.204
Publication Date:
12/2006
Origin:
ASP
Bibliographic Code:
2006ASPC..354..204D

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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