The Solar Acoustic Spectrum as Seen by Golf . Iv

The model tted to the observed spectra by GOLF allows the measurement of the linewidth and power of each mode (see Roca Cort es et al., 1998). The linewidths are related to the damping mechanisms and the energies give information on the excitation mechanisms of the modes. Here the results of these parameters as well as the relative energy shared by the components of a given multiplet are presented. The results seem to support the turbulent con-vection as the main mechanism to excite the modes, however their damping also has to include radiative damping and possibly other sources. Moreover, results on the relative power of the components of the same multiplet seem to depart signiicantly from the average behaviour assuming convection driven excitation mechanism only.