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Paper: Three-dimensional Radiative Transfer Modeling of the Second Solar Spectrum of Titanium
Volume: 405, Solar Polarization 5: In Honor of Jan Olof Stenflo
Page: 275
Authors: Shchukina, N.G.; Trujillo Bueno, J.
Abstract: Here we present multilevel radiative transfer calculations of the scattering polarization of neutral titanium lines in a three-dimensional model of the solar photosphere, which we have obtained from realistic hydrodynamical simulations of solar surface convection. We consider the particularly interesting case of the Ti I multiplet a5F − y5Fo, which is well suited for investigating the Sun’s hidden magnetism via the differential Hanle effect. After considering the unmagnetized reference case, we show that the depolarization produced by a volume-filling microturbulent field with a strength such that it produces saturation of the upper-level Hanle effect leads to a much better fit to Gandorfer’s (2002) observations.
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