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Title:
A Comparison of the Acoustic Hardness of Acoustically Active and Non-Active Solar Flares
Authors:
Beşliu-Ionescu, Diana; Donea, Alina; Cally, Paul
Affiliation:
AA(CSPA, School of Mathematical Sciences, Monash University, Clayton, Australia, 3800; Astronomical Institute of the Romanian Academy, Str. Cutitul de argint, Nr. 5, Bucharest, Romania, Ro-040557), AB(CSPA, School of Mathematical Sciences, Monash University, Clayton, Australia, 3800), AC(CSPA, School of Mathematical Sciences, Monash University, Clayton, Australia, 3800)
Publication:
EXPLORING THE SOLAR SYSTEM AND THE UNIVERSE. AIP Conference Proceedings, Volume 1043, pp. 252-255 (2008). (AIPC Homepage)
Publication Date:
09/2008
Origin:
AIP
PACS Keywords:
Flares, Helioseismology, pulsations, and shock waves, Magnetohydrodynamics and plasmas, Astronomical observations, Chromosphere, Pulsations, oscillations, and stellar seismology
DOI:
10.1063/1.2993656
Bibliographic Code:
2008AIPC.1043..252B

Abstract

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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