Table 3
Apparent fundamental parameters deduced according to several assumptions about the structure of gravity darkened atmospheres.
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log gpnrc = 4.0 dex | log gpnrc = 4.0 dex | |||||||||||||
Veq = 376 km s-1 | Veq = 476 km s-1 | |||||||||||||
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i | Model | W4471 | W4481 |
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log gapp | (Vsini)app | W4471 | W4481 |
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log gapp | (Vsini)app | |||
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Å | Å | K | dex | He | Mg | Å | Å | K | dex | He | Mg | |||
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(a) | 0.535 | 0.322 | 12 850 | 4.10 | 174 | 171 | 1.273 | 0.161 | 22 000 | 3.81 | 225 | 212 | ||
30° | (b) | 0.523 | 0.330 | 12 770 | 4.24 | 199 | 212 | 1.440 | 0.167 | 22 000 | 4.07 | 260 | 264 | |
(c) | 0.501 | 0.349 | 12 620 | 4.56 | 152 | 181 | 1.265 | 0.176 | 20 830 | 3.71 | 223 | 239 | ||
(a) | 0.472 | 0.311 | 12 410 | 3.65 | 274 | 278 | 1.138 | 0.153 | 22 210 | 3.62 | 348 | 348 | ||
60° | (b) | 0.483 | 0.325 | 12 490 | 3.98 | 311 | 334 | 1.382 | 0.163 | 22 050 | 3.99 | 411 | 414 | |
(c) | 0.388 | 0.355 | 11 730 | 4.22 | 231 | 293 | 1.148 | 0.178 | 20 370 | 3.48 | 351 | 384 | ||
(a) | 0.380 | 0.296 | 11 640 | 2.73 | 289 | 301 | 0.974 | 0.143 | 22 250 | 3.35 | 374 | 379 | ||
90° | (b) | 0.416 | 0.318 | 12 020 | 3.60 | 332 | 363 | 1.313 | 0.159 | 22 340 | 3.90 | 446 | 450 | |
(c) | 0.251 | 0.364 | 9 720 | 3.32 | 234 | 314 | 1.009 | 0.180 | 18 580 | 3.20 | 375 | 415 |
Notes. (a) GD models with uniform radiation source function; (b) no GD but θ-dependent effective gravity; (c) the classical von Zeipel GD. W4471 and W4481 are the equivalent widths of the He i 4471 and Mg ii 4481 lines, respectively.
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