Is there a correlation between high-frequency global oscillations and solar flares?
|HEPL, Stanford University|
|Low degree solar and stellar seismology|
|Auteur(s) supplémentaire(s)||M. C. Rabello-Soares, R. S. Bogart|
|Institution(s) supplémentaire(s)||HEPL, Stanford University|
|Global oscillations have been observed in the high-frequency spectrum in velocity and intensity measurements, above the acoustic cutoff frequency of the solar atmosphere. In a recent work a strong correlation observed between helioseismic data and soft x-ray flux has been cited as evidence that solar flares may be one of the mechanisms whereby these high-frequency oscillations are excited. Here we investigate how the correlation between helioseismic time series from the instruments aboard SOHO and the soft x-ray data from GOES SXI might be influenced by the pre-analysis processing of the data as well as the analysis methodology.|