Results from the luminosity oscillations imager on board SOHO: low-degree p-mode parameters for a 4-year data set

Details Results from the luminosity oscillations imager on board SOHO: low-degree p-mode parameters for a 4-year data set Results from the luminosity oscillations imager on board SOHO: low-degree p-mode parameters for a 4-year data set

Jan 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001esasp.464...71a&link_type=abstract

In: Proceedings of the SOHO 10/GONG 2000 Workshop: Helio- and asteroseismology at the dawn of the millennium, 2-6 October 2000,

Physics

5

Intensity, P Modes, Soho, Sun, Activity

Scientific paper

I report on the results from a 4-year VIRGO/LOI data set. I have analysed independently four 1-year time series mainly for minimizing the effect of solar activity. For l<=3 the p-mode data are fitted using the Fourier spectra taking into account the mode leakage and noise correlations. For l>=4, the data are fitted using simultaneously the power spectra of l=4.7, l=5.8 and l=1.6. The effect of solar activity upon frequencies, linewidths, mode amplitude, energy rate, asymmetry and splitting is studied. Most of these results in intensity confirms earlier measurements made in velocity.

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