Multi-component analysis of a flaring region in the chromospheric He I 1083.0 nm triplet

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Scientific paper

We present infrared spectropolarimetric observations of the solar active region NOAA 0763 obtained with the new Tenerife Infrared Polarimeter (TIP 2) at the German Vacuum Tower Telescope (VTT) during May 2005, taken in the chromospheric He I 1083.0 nm multiplet. The region was in the initial phase of a C2.0 flare. We observe up to 4 atmospheric components within the spatial resolution of our observations. The components are clearly separated in wavelength, the largest separation corresponding to downflow velocities of up to 64 km/s. We give preliminary results on the magnetic vector and the line-of sight velocity obtained by inverting the Stokes I, Q, U and V profiles of the He 1083.0 nm triplet.

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