Table 1
Stellar and extinction properties derived from quantitative spectroscopy and optical (
) SED fitting.
| Name | Sp. type | Teff K | log ɡ cm s−2 | AV | log L/L⊙ | R⋆ R⊙ | M (a) M⊙ | AgeHRD Myr |
|---|---|---|---|---|---|---|---|---|
| B163(b) | kA5 | 8200 | – |  |
 |
 |
6 | 0.14 |
| B243 | B8 V |  |
 |
 |
 |
 |
6 | 0.20 |
| B268 | B9-A0 |  |
 |
 |
 |
 |
6 | 0.20 |
| B275 | B7 III |  |
 |
 |
 |
 |
8 | 0.04 |
| B331(b) | late-B | 13 000 | – |  |
 |
 |
12 | 0.02 |
Notes. Data from Tables 2, 3, and 5 in Ramírez-Tannus et al. (2017). The adopted distance for M17 is 1.98 kpc. (a)ZAMS mass of best fit PMS track. (b)B163 and B331 were too embedded to allow for full modeling. Physical parameters were estimated by spectroscopic classification and estimating Teff and L from Kurucz calibration tables.
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