The Influence of Eruptive Processes in Active Regions on Oscillations of the Magnetic Field Parameters in Sunspot Umbrae

For three events, the effect of eruptive processes in active regions on the characteristic of magnetic field oscillations in sunspot umbrae has been studied. Eruptive processes include solar flares and coronal mass ejections. The power spectra of oscillations of each analyzed parameter of the magnetic field in each sunspot of the studied active region (AR) are constructed, and, in general, for the entire AR. It was found that at certain stages the eruptive process has a noticeable effect on the power spectrum of oscillations of the magnetic field parameters in sunspot umbrae. It is shown that the power of the eruptive process, which is characterized by the X-ray flare, affects the features of the magnetic field oscillations in sunspot umbrae. The results obtained for ARs with eruptive processes are compared with the results for ARs without eruptive processes. The analysis of the influence of eruptive processes on the magnetic field oscillations in sunspot umbrae was carried out for the AR as a whole, and for some sunspots with the strongest response. For different events, the oscillation power spectrum was compared with the intensity maximum A(max), frequency f(m), which accounts for the maximum A(max), and the frequency power spectrum width d(f).