Study of a sunspot umbra using spatially deconvolved Hinode spectropolarometric data

We have studied the properties of the umbra of NOAA AR 10933 using a 2-step deconvolution method to improve the quality of the data. We have implemented a simple, fast deconvolution technique for observations from the Solar Optical Telescope (SOT, Tsuneta et al 2008) on-board Hinode (Kosugi et al 2007). By performing Richardson-Lucy iterative deconvolution (Richardson 1972, Lucy 1974) on the polarization images one wavelength at a time, we remove the diffraction pattern of SOT from SP data before feeding them into a conventional inversion scheme (SIR, Ruiz Cobo & del Toro Iniesta 1992), which performs the inversion independently pixel-by-pixel. As result, we obtain well-contrasted, well-detailed physical maps of the vector magnetic field and other thermodynamic parameters that may shed light on the nature of the umbra.