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Table A.1
Dimensions for the four grids of synthetic spectra used for the spectroscopic and SED analyses. For each parameter, the maximum and minimum values, as well as the step width are stated. As described in Sect. 4, the large and small TLUSTY/SYNSPEC grids were each computed using a fixed metal abundance pattern.
| TLUSTY/SYNSPEC | ATLAS12/SYNTHE | ||||
|---|---|---|---|---|---|
| Parameter | large | small | large | small | |
| Teff (K) | { | 27500 | 37300 | 4000 | 6150 |
| 47500 | 38800 | 8000 | 6275 | ||
| 1250 | 500 | 200 | 25 | ||
| log g | { | 4.750 | 5.60 | 2.00 | 4.50 |
| 6.125 | 6.00 | 5.20 | 4.80 | ||
| 0.125 | 0.20 | 0.20 | 0.10 | ||
| log n(He)∕n(H) | { | − 1.00 | − 0.23 | − 1.07 | − 1.07 |
| + 2.00 | + 0.07 | − 1.07 | − 1.07 | ||
| 0.25 | 0.15 | – | – | ||
| [Fe/H] | { | – | – | − 2.00 | − 2.05 |
| – | – | + 0.50 | − 1.85 | ||
| – | – | 0.50 | 0.20 | ||
| [α∕Fe] | { | – | – | 0.40 | 0.33 |
| – | – | 0.40 | 0.44 | ||
| – | – | – | 0.11 | ||
| vtb (km s−1) | { | 5.0 | 0.0 | 0.0 | 1.5 |
| 5.0 | 3.0 | 2.0 | 2.5 | ||
| – | 3.0 | 1.0 | 1.0 | ||
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