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Table 10

Fundamental properties for both the main-sequence (MS) and subdwarf (sdB) component of BD+29°3070, BD+34°1543 and Feige 87.

BD+29°3070 BD+34°1543 Feige 87
Parameter MS sdB MS sdB MS sdB

P (d) 1283 ± 63 972 ± 2 936 ± 2
T 0 2453877 ± 41 2451519 ± 11 2453259 ± 21
e 0.15 ± 0.01 0.16 ± 0.01 0.11 ± 0.01
ω 1.60 ± 0.22 1.58 ± 0.07 2.92 ± 0.15
γ (km s-1) −57.58 ± 0.36 32.10 ± 0.06 32.98 ± 0.08
q 0.39 ± 0.01 0.57 ± 0.01 0.55 ± 0.01
a (R) 586 ± 12 447 ± 4 442 ± 3
i (°) 81 ± 5 43 ± 1 75 ± 2
E(B − V) 0.010 ± 0.030 0.005 ± 0.030 0.006 ± 0.030
d (pc) 238 ± 25 207 ± 30 383 ± 40
[Fe/H] 0.05 ± 0.16 −0.26 ± 0.08 –0.50 ± 0.18
K (km s-1) 6.53 ± 0.30 16.6 ± 0.6 5.91 ± 0.07 10.31 ± 0.15 8.19 ± 0.11 15.01 ± 0.21
M (M) 1.19 ± 0.09 0.47 ± 0.05 0.82 ± 0.07 0.47 ± 0.05 0.86 ± 0.07 0.47 ± 0.05
log g (cgs) 4.32 ± 0.50 5.56 ± 0.44 4.18 ± 0.40 5.84 ± 0.35 4.36 ± 0.42 5.54 ± 0.34
R (R) 1.25 ± 0.97 0.19 ± 0.10 1.21 ± 0.48 0.14 ± 0.06 1.02 ± 0.50 0.19 ± 0.07
Teff (K) 6180 ± 420 25 900 ± 3000 6100 ± 300 36 600 ± 3000 5980 ± 325 27 300 ± 2700
L (L) 2.06 ± 0.25 14.3 ± 3.0 1.83 ± 0.25 30.13 ± 4.0 1.19 ± 0.20 18.04 ± 3.0
V0 (mag) 10.91 ± 0.10 11.47 ± 0.15 10.72 ± 0.10 11.11 ± 0.15 12.54 ± 0.10 12.36 ± 0.15
MV (mag) 4.02 ± 0.10 4.58 ± 0.15 4.14 ± 0.10 4.54 ± 0.15 4.62 ± 0.10 4.44 ± 0.15

Notes. The sdB mass is the canonical value.

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