A Comparison of the Acoustic Hardness of Acoustically Active and Non-Active Solar Flares

Details A Comparison of the Acoustic Hardness of Acoustically Active and Non-Active Solar Flares A Comparison of the Acoustic Hardness of Acoustically Active and Non-Active Solar Flares

Sep 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008aipc.1043..252b&link_type=abstract

EXPLORING THE SOLAR SYSTEM AND THE UNIVERSE. AIP Conference Proceedings, Volume 1043, pp. 252-255 (2008).

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Flares, Helioseismology, Pulsations, And Shock Waves, Magnetohydrodynamics And Plasmas, Astronomical Observations, Chromosphere, Pulsations, Oscillations, And Stellar Seismology

Scientific paper

Recent corrections to some of the GONG+intensity images of flares allow us to image the acoustic power of white light flare signatures. The images clearly show compact regions of white light power at 6 mHz, which are well correlated spatially with the seismic signatures of the flares, when the flare proved to be acoustically active. It has been a puzzle why some of the white light flares, mainly very strong flares, did not induced any seismic waves into the photosphere. We believe that a comparison of the white light spectral hardness of two flares (one seismically active and another one seismically quiet) is the clue to understand the physics of the sun quakes.

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