PREDNASAJUCI / LECTURER :

 Peter Gomory

NAZOV / TITLE :

 Spectropolarimetry of a Small-Scale Magnetic Loop Emergence

ABSTRAKT / ABSTRACT :

 We investigated the temporal evolution of a magnetic flux emergence
 within a granule in the quiet-Sun internetwork at disk center.
 Combination of an IR spectropolarimetry of high angular resolution
 performed in two Fe I lines at 1565 nm with speckle-reconstructed
 G-band imaging was used for observations at the German Vacuum Tower
 Telescope. The magnetic field parameters were computed by a LTE
 inversion of the full Stokes vector using the SIR code. To interpret
 the observations, we created a geometrical model of a rising loop in
 3D. We then synthesized spectra from the 3D model for a comparison
 to the observations. The observed event can be interpreted as a 12 min
 episode of a small-scale loop occurrence with a total magnetic flux of
 around 3 x 10^17 Mx . The fast disappearance of the loop at the end
 could possibly be due to magnetic reconnection.