Пятихвилинні коливання яскравості Сонця

Abstract

We examined the possible nature and the origin of the solar irradiance five-minute oscillations. Using solar observations we solved the inverse radiative transfer problem and reproduced the height stratification of the local and global temperature oscillations of low l in the solar photosphere. The pseudoglobal oscillations were extracted from photosphere oscillations so we studied the contribution of acoustic modes into the solar irradiance oscillations. It is shown that the latter ones originate from the scattering p-modes of low l on the solar granulation with the subsequent constructive interference.