Table 4
Parameters derived from the reconstruction of the Lyman-α line profiles.
| Parameter | ISM properties | Unit | |||
|
|
|||||
| log10 N(H i) | 18.18 |
cm-2 | |||
| b(H i) | 13.1 |
km s-1 | |||
| γ(H i)/∗ | 8.6 |
km s-1 | |||
|
|
|||||
| Parameter | Visit 0 | Visit 1 | Visit 2 | Visit 3 | Unit |
|
|
|||||
| Fit range | [1214.66−1215.57] | [1214.43−1216.89] | [1214.44−1215.61] | [1214.46−1216.91] | Å |
| [1215.86−1216.67] | [1215.77−1216.36] | Å | |||
| [1216.52−1216.89] | Å | ||||
| χ 2 | 146.0 | 39.3 | 18.4 | 28.6 | |
| d.o.f | 132 | 39 | 33 | 39 | |
|
|
|||||
|
− | 0.91 |
0.93 |
0.95 |
|
|
1.69 |
0.92 ± 0.08 | 0.94 |
1.03± 0.07 | STIS pixels† |
|
− | 3.8 |
5.7 ± 1.3 | 5.8 |
STIS pixels† |
| fpeak(1 au) | 14.2 |
14.1± 0.6 | 13.2 |
13.0 |
erg cm-2 s-1 Å-1 |
| Δ vD | 64.3 |
69.89 |
72.7 ± 3.4 | 71.0 ± 2.5 | km s-1 |
| a damp | 0.037 |
0.048 ± 0.003 | 0.036 ± 0.007 | 0.044 ± 0.004 | |
| γ ∗ | −2.3 |
−5.4 ± 0.5 | −4.5 ± 0.6 | −4.3 ± 0.5 | km s-1 |
| FLyα(1 au) | 7.6 |
8.4 ± 0.2 | 7.8 ± 0.2 | 7.8 ± 0.2 | erg cm-2 s-1 |
| FLyα(Earth) | 4.0 |
4.4 ± 0.1 | 4.1 ± 0.1 | 4.1 ± 0.1 | ×10-13 erg cm-2 s-1 |
Notes. FLyα is the flux integrated in the entire Lyman-α line, calculated at Earth distance and at 1 au from the star. ISM properties are derived from the reconstruction of the weighted mean of the Visits 1, 2, and 3 spectra, and from the single Visit 0 spectrum.
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