Hanle effect with angle-dependent partial redistribution

  title={Hanle effect with angle-dependent partial redistribution},
  author={K. N. Nagendra and H{\'e}l{\`e}ne Frisch and Marianne Faurobert},
  journal={Astronomy and Astrophysics},
The polarized line transfer equation for the Hanle effect is solved in the framework of an exact partial frequency redistribution (PRD) theory developed by Bommier (1997a,b). In that theory the effect of collisions on the Hanle effect is con- sidered self-consistently. We follow that approach in the line transfer computations presented here. The theory formulated by Bommier clearly recognizes two levels of approximations for exact PRD, in order to facilitate the solution of the line transfer… 

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