Table 2.
Estimated fundamental physical parameters for candidate RSGs in 30 Dor.
| # | VFTS ID |  |
L(V − K) |  |
L(J − K) | L(I) | L(J) | L(K) | R | log g | M | Age (B) | Age (P) | Notes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| (K) | log(L/L⊙) | (K) | log(L/L⊙) | log(L/L⊙) | log(L/L⊙) | log(L/L⊙) | (R⊙) | log(cm s−2) | (M⊙) | (Myr) | (Myr) | |||
| 1 | 023 | 4259 ± 222 | 4.28 ± 0.09 | 3873 ± 144 | 4.09 ± 0.14 | 4.33 ± 0.17 | 4.17 ± 0.18 | 4.22 ± 0.17 | 268 ± 56 | 0.45(?) | 7.7 ± 3.2 | 33.6 |
33.0 |
AGB candidate |
| 2 | 081 | 4269 ± 131 | 4.82 ± 0.05 | 3935 ± 142 | 4.67 ± 0.13 | 4.86 ± 0.08 | 4.74 ± 0.09 | 4.77 ± 0.10 | 507 ± 59 | 0.3 | 18.7 ± 4.2 | 16.1 |
15.6 |
|
| 3 | 198 | 4029 ± 210 | 4.74 ± 0.09 | 3884 ± 150 | 4.63 ± 0.16 | 4.72 ± 0.20 | 4.67 ± 0.24 | 4.77 ± 0.20 | 495 ± 132 | 0.2 | 14.7 ± 7.0 | 17.7 |
17.1 |
|
| 4 | 222 | 4084 ± 146 | 4.25 ± 0.06 | 3935 ± 145 | 4.15 ± 0.14 | 4.28 ± 0.11 | 4.19 ± 0.13 | 4.25 ± 0.13 | 276 ± 46 | 0.5(?) | 8.7 ± 2.7 | 32.5 |
31.9 |
AGB candidate |
| 5 | 236 | 4035 ± 114 | 4.58 ± 0.05 | 3932 ± 142 | 4.50 ± 0.13 | 4.59 ± 0.07 | 4.54 ± 0.09 | 4.58 ± 0.08 | 403 ± 55 | 0.4 | 15.5 ± 4.2 | 21.1 |
20.5 |
H301 cand.; Teff = 3950 ± 105 K (T18) |
| 6 | 275 | 3447 ± 37 | 5.03 ± 0.02 | 3677 ± 148 | 4.98 ± 0.12 | 4.80 ± 0.08 | 5.04 ± 0.08 | 5.22 ± 0.08 | 824 ± 108 | −0.1 | 20.3 ± 5.2 | 10.7 |
10.8 |
Teff = 3625 K, log(L/L⊙) = 5.13 (L07) |
| 7 | 281 | 3632 ± 59 | 4.80 ± 0.03 | 3837 ± 162 | 4.78 ± 0.12 | 4.79 ± 0.09 | 4.84 ± 0.09 | 4.92 ± 0.11 | 602 ± 77 | 0.15 | 18.5 ± 4.7 | 14.1 |
14.0 |
Hodge 301 member |
| 8 | 289 | 4110 ± 115 | 4.48 ± 0.05 | 3924 ± 142 | 4.36 ± 0.13 | 4.51 ± 0.10 | 4.41 ± 0.08 | 4.46 ± 0.10 | 349 ± 43 | 0.4 | 11.3 ± 2.7 | 24.4 |
24.1 |
Hodge 301 member |
| 9 | 341 | 3851 ± 283 | 4.99 ± 0.12 | 3763 ± 160 | 4.88 ± 0.18 | 4.87 ± 0.28 | 4.94 ± 0.30 | 5.04 ± 0.35 | 762 ± 275 | 0.0 | 20.8 ± 10.0 | 12.2 |
12.4 |
Teff = 3737 ± 94 K (T18) |
| 10 | 655 | 4225 ± 305 | 4.34 ± 0.12 | 3920 ± 150 | 4.19 ± 0.16 | 4.35 ± 0.19 | 4.22 ± 0.19 | 4.25 ± 0.25 | 288 ± 65 | 0.45(?) | 6.6 ± 3.7 | 31.5 |
30.9 |
AGB candidate |
| 11 | 744 | 4108 ± 533 | 4.26 ± 0.21 | 3827 ± 179 | 4.09 ± 0.20 | 4.30 ± 0.38 | 4.20 ± 0.37 | 4.24 ± 0.38 | 298 ± 149 | 0.35(?) | 8.7± 6.0 | 32.4 |
31.8 |
AGB candidate |
| 12 | 793 | 5566 ± 299 | 2.15 ± 0.10 | 4254 ± 143 | 2.26 ± 0.13 | 2.30 ± 0.11 | 2.37 ± 0.12 | 2.19 ± 0.12 | 29 ± 4 | – | – | – | – | Foreground star |
| 13 | 828 | 3860 ± 120 | 4.95 ± 0.05 | 3883 ± 145 | 4.88 ± 0.13 | 4.99 ± 0.11 | 4.94 ± 0.12 | 5.03 ± 0.12 | 664 ± 106 | 0.1 | 21.0 ± 6.8 | 12.2 |
12.4 |
SL 639 member |
| 14 | 839 | 3966 ± 124 | 4.81 ± 0.05 | 3877 ± 145 | 4.72 ± 0.12 | 4.85 ± 0.11 | 4.79 ± 0.12 | 4.85 ± 0.14 | 539 ± 92 | 0.25 | 19.6 ± 5.7 | 15.0 |
14.8 |
SL 639 member |
| 15 | 852 | 4363 ± 119 | 4.64 ± 0.05 | 3899 ± 140 | 4.53 ± 0.02 | 4.69 ± 0.08 | 4.58 ± 0.08 | 4.64 ± 0.08 | 431 ± 54 | 0.3 | 13.6 ± 2.8 | 19.9 |
19.2 |
SL 639 candidate |
| 16 | 2002 | 3883 ± 220 | 5.04 ± 0.09 | 3799 ± 150 | 4.93 ± 0.16 | 5.00 ± 0.17 | 5.00 ± 0.24 | 5.10 ± 0.23 | 757 ± 211 | 0.0 | 21 ± 10 | 11.3 |
11.4 |
Teff = 3748 ± 79 K (T18) |
| 17 | 2028 | 3854 ± 131 | 4.94 ± 0.06 | 3914 ± 143 | 4.91 ± 0.14 | 4.93 ± 0.10 | 4.95 ± 0.14 | 5.01 ± 0.14 | 654 ± 111 | 0.1 | 19.5 ± 6.0 | 12.1 |
12.3 |
Teff = 4572 ± 75 K (T18) |
| 18 | 2090 | 4284 ± 151 | 4.60 ± 0.06 | 3895 ± 143 | 4.42 ± 0.14 | 4.63 ± 0.10 | 4.51 ± 0.12 | 4.54 ± 0.13 | 394 ± 61 | 0.35 | 13.2 ± 3.9 | 21.8 |
21.2 |
SL 639 candidate |
| 19 | WB97 5 | 4858 ± 180 | 5.06 ± 0.06 | 3834 ± 142 | 4.67 ± 0.13 | 4.72 ± 0.09 | 4.72 ± 0.07 | 4.83 ± 0.09 | 522 ± 53 | 0.2 | 16.2 ± 3.5 | 16.5 |
16.0 |
Hodge 301 member |
| 20 | Mk 9 | 3700 ± 60 | 5.13 ± 0.03 | 3862 ± 150 | 5.11 ± 0.13 | 5.17 ± 0.09 | 5.15 ± 0.09 | 5.25 ± 0.08 | 902 ± 45 | −0.1 | 23.0 ± 3.0 | 9.4 |
9.4 |
Notes. Published parameters in the final column are from L07 (Levesque et al. 2007) and T18 (Tabernero et al. 2018). Typical uncertainties on logarithmic gravities are ± 0.1 dex, with larger uncertainties for the candidate AGB stars, as indicated by the question marks. We presented two age estimates: “Age (B)”, from evolutionary tracks from Brott et al. (2011); “Age(P)”, using the tracks from Bressan et al. (2012).
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