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We present the results from first spectropolarimetric observations of thesolar photosphere acquired at the Dunn Solar Telescope with the InterferometricBidimensional Spectrometer. Full Stokes profiles were measured in the Fe I630.15 nm and Fe I 630.25 nm lines with high spatial and spectral resolutionsfor 53 minutes, with a Stokes V noise of 0.003 the continuum intensity level.The dataset allows us to study the evolution of several magnetic featuresassociated with G-band bright points in the quiet Sun. Here we focus on theanalysis of three distinct processes, namely the coalescence, fragmentation andcancellation of G-band bright points. Our analysis is based on a SIR inversionof the Stokes I and V profiles of both Fe I lines. The high spatial resolutionof the G-band images combined with the inversion results helps to interpret theundergoing physical processes. The appearance (dissolution) of high-contrastG-band bright points is found to be related to the local increase (decrease) ofthe magnetic filling factor, without appreciable changes in the field strength.The cancellation of opposite-polarity bright points can be the signature ofeither magnetic reconnection or the emergence/submergence of magnetic loops.

Imaging Spectropolarimetry with IBIS: Evolution of Bright Points in the Quiet Sun