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Table 4.
Atmospheric parameters of the two components of the α Dra system as inferred from their disentangled spectra with the GSSP_SINGLE module.
| Parameter | Value ± Error |
||
|---|---|---|---|
| Run 1 | Run 2a | Run 2b | |
| Primary | |||
| Teff (K) | 10190±125 | 10205±100 | 10225±100 |
| log g (dex) | 3.52±0.09 | 3.5511(*)±0.0081 | 3.5511(*)±0.0081 |
| [M/H] (dex) | −0.03±0.05 | 0.01±0.05 | 0.01±0.05 |
| ξ (km s−1) | 1.06±0.21 | 1.26±0.30 | 1.34±0.30 |
| v sin i (km s−1) | 25.4±0.7 | 25.4±0.9 | 25.4±0.9 |
| light factor | 0.848±0.012 | 0.83±0.01 | 0.825(*)±0.010 |
| Secondary | |||
| Teff (K) | —– | 10150±300 | 10165±250 |
| log g (dex) | —– | 4.095(*)±0.023 | 4.095(*)±0.023 |
| [M/H] (dex) | —– | −0.12±0.15 | -0.01±0.09 |
| ξ (km s−1) | —– | 0.1±0.9 | 0.75±0.75 |
| v sin i (km s−1) | —– | 168±10 | 168±11 |
| light factor | —– | 0.20±0.02 | 0.175(*)±0.011 |
Notes. The asterisk (*) refers to the parameters whose values are fixed to those inferred from the TESS light curve. The finally accepted set of parameters is highlighted in boldface.
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