Resonant absorption and the spectrum of 5-min oscillations of the Sun
III. Influence of inhomogeneity of the canopy magnetic field on fine structure
Central Astronomical Observatory of Russian Academy of Sciences, 65 Pulkovo, 196 140 St. Petersburg, Russia
Accepted: 10 January 2001
We studied influence of magnetic field on the spectrum of 5-min solar oscillations. The calculations were made within a two-layer shell model. The lower non-magnetized layer is characterized by a linear decrease in temperature with height while in the upper layer (with an inhomogeneous horizontal magnetic field) the temperature increases and reaches the coronal value at a height of about 2500 km. The fine structure of the spectrum of 5-min oscillations was calculated for f-, p1- and p2- modes for large k.
Key words: Sun: oscillations / chromosphere / MHD
© ESO, 2001