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Table 1
Comparison between the reduction and analysis procedures applied within the two adopted pipelines.
| Reduction/analysis step | Bonn pipeline | Potsdam pipeline |
|
|
||
| Bias subtraction | Yes | Yes |
| Flat-field correction | No | No |
| Spectral extraction method | Average | Average |
| Background subtraction | No | Yes |
| Wavelength calibration | Manual | Automatic |
| Spectral sampling [Å/pix] | 0.75 | 0.1 |
| Rectification | Polynomial | Linear |
| Sigma clipping | Yes | Yes |
| ⟨ Bz ⟩, ⟨ Nz ⟩ | Linear fit | Linear fit |
| σ⟨ Bz ⟩, σ⟨ Nz ⟩ | χ2-scaled | Monte Carlo |
Notes. More details are given in the text.
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