Table 1.
Estimation of the chromatic slope ξ of the linear law linking the diagonal s of the diffracted square pattern with the wavelength λ and the corresponding relative error on the spectral calibration σλ for the different datasets and their acquisition dates with the proposed method and, for the first acquisition date, with the SPHERE reduction pipeline (RP, Delorme et al. 2017).
| Dataset | HR 8799 |
RY lup |
||||
|---|---|---|---|---|---|---|
| t1 | t2 | RP | t1 | t2 | RP | |
| voxel μm−1 | 54.83 | 54.95 | 49.00 | 54.70 | 54.56 | 48.57 |
| σλ (%) | 0.25 | 0.26 | 0.33 | 0.16 | 0.22 | 0.25 |
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