Open Access
Table A.1
Sodium fitting priors.
| Parameter | Prior | Comment |
|---|---|---|
| β | U (0.8, 10.0) | |
| τ1 | U (0.0, 3.0) | Main disk line component. |
| τ2 | U (0.0, 3.0) | Blueshifted component. |
| τ3 | U (0.0, 2.0) | Secondary disk line. |
| λ1 | U (589.03, 589.04) | |
| λ2 | variable | |
| λ3 | U (589.04, 589.06) | |
| σ1 | U (0.8, 4.0) | |
| σ2 | U (0.8, 4.0) | |
| σ3 | U (2.0, 5.0) | |
| f1 | 1 | Fill fractions fixed. |
| f2 | 1 | |
| f3 | 1 | |
| dλ | U (0.59, 0.605) | |
| c0 | U (0.95, 1.05) | Continuum D2 line. |
| c1 | U (−0.01, 0.01) | |
| c2 | U (−0.005, 0.005) | |
| d0 | U (0.9, 1.1) | Continuum D1 line. |
| d1 | U (−0.05, 0.05) | |
| d2 | U (−0.005, 0.005) |
Notes. Priors used when fitting exocometary sodium over four nights (see Fig. 6), describing three line components occurring in two wavelength slices.
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