5. Data preparation

• 5.1. Data preparation
• 5.2. How to deal with boundary conditions
  • 5.2.1. Disk center
  • 5.2.2. Away from disk center
• 5.3. Basic Equations
  • 5.3.1. The geometry for the scattering event
  • 5.3.2. The radiative transfer approach
  • 5.3.3. The multipolar components of the atomic density matrix
  • 5.3.4. Statistical equilibrium equations
  • 5.3.5. Emission and absorption coefficients
  • 5.3.6. Inversion
  • 5.3.7. Global Optimization techniques
  • 5.3.8. Convergence
  • 5.3.9. Stopping criterium
• 5.4. Ambiguities in the Hanle effect in the saturation regime
  • 5.4.1. \(\Phi_B’=\Phi_B\)
  • 5.4.2. \(\Phi_B’=\Phi_B+\pi\)
  • 5.4.3. \(\Phi_B’=\Phi_B+\pi/2\)
  • 5.4.4. \(\Phi_B’=\Phi_B-\pi/2\)
• 5.5. List of photospheric lines
• 5.6. The reference system
  • 5.6.1. On-disk observation
  • 5.6.2. Off-limb observation
• 5.7. Atomic models