Table 1.
Parameters derived for the three binaries analyzed in Blanco 1.
| Parameter | Units | Star W57 | Star W61 | Star W86 |
|---|---|---|---|---|
| P | d | 2.40 | 1.92 | 5.401 |
| KA | km s−1 | 44.6 | 53.1 | 19.0 |
| e | 0.03 | 0.00 | 0.27 | |
| f | M⊙ | 0.022 | 0.030 | 0.003 |
| N | 32 | 36 | 22 | |
| MA | M⊙ | 1.40 | 1.44 | 2.30 |
| MB, min | M⊙ | 0.42 | 0.48 | 0.25 |
| q | 0.30–0.37 | 0.47 | 0.42 | |
| MB | M⊙ | 0.42–0.52 | 0.68 | 0.97 |
| Teff | K | – | 4600 | 5100 |
| S/N | < 3 | 18.1 | 6.6 | |
Notes. The first part of the table lists parameters derived from the RV curve (period, RV amplitude, eccentricity, mass function, number of observations), the primary mass as estimated from the cluster color-magnitude diagram, and the corresponding lower limit for the secondary mass. The second part of the table shows the parameters obtained with find2c.
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