Solving the Paradox of the Solar Sodium D_{1} Line Polarization.

@article{AlsinaBallester2021SolvingTP,
  title={Solving the Paradox of the Solar Sodium D\_\{1\} Line Polarization.},
  author={Ernest Alsina Ballester and Luca Belluzzi and Javier Trujillo Bueno},
  journal={Physical review letters},
  year={2021},
  volume={127 8},
  pages={
          081101
        }
}
Twenty-five years ago, enigmatic linear polarization signals were discovered in the core of the sodium D_{1} line. The only explanation that could be found implied that the solar chromosphere is practically unmagnetized, in contradiction with other evidences. This opened a paradox that has challenged physicists for many years. Here we present its solution, demonstrating that these polarization signals can be properly explained in the presence of magnetic fields in the gauss range. This result… Expand

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