COMPARISON OF HIGH-DEGREE SOLAR ACOUSTIC FREQUENCIES AND ASYMMETRY BETWEEN VELOCITY AND INTENSITY DATA
COMPARISON OF HIGH-DEGREE SOLAR ACOUSTIC FREQUENCIES AND ASYMMETRY BETWEEN VELOCITY AND INTENSITY DATA
Using the local helioseismic technique of ring diagram we analyze the frequencies of high-degree f-and p-modes derived from both velocity and continuum intensity data observed by MDI.Fitting the spectra with asymmetric peak profiles, we find that the asymmetry associated with velocity line profiles is negative for all frequency ranges agreeing …