Oscillations in a solar pore

Temporal variations of a. solar pore were observed at the ground based Vacu um Tower Telescope (VTT) on Tenerife and with the satellite TRACE. At the V TT Stokes I and V of the iron line at 1.56 mu m, originating in the deep ph otosphere, was measured. TRACE delivered UV images at 170 nm which show chr omospheric continuum. In a part of the pore we find oscillations of the mag netic field in the 5 minute range. Velocities derived from shifts of the St okes V profiles show 5 minutes everywhere in the pore, but the coherence of magnetic field and velocities is low. The intensity at 170 nm varies with 3 minutes, and for a part of the whole time series additionally with 4 minu tes.