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Table 3.
Summary of the main parameters for the Sun and 16 Cyg A and B used to infer the activity.
| Active Sun | Quiet Sun | 16 Cyg A | 16 Cyg B | |
|---|---|---|---|---|
 |
100 | 70 | 30 | 29 |
| Δν (μHz) | 135.1 | 135.1 | 103.35 | 116.92 |
| a1 (nHz) | 421 ± 10 | 410 ± 9 | 614 ± 37 | 607 ± 78 |
| a1/Γ | 0.45 ± 0.03 | 0.40 ± 0.02 | 0.45 ± 0.04 | 0.58 ± 0.1 |
| inclination (°) | 90 (fixed) | 90 (fixed) | 45 ± 4 | 35 ± 3 |
| a2 (nHz) | 80 ± 19 | 11 ± 21 | 19.6 ± 8.6 | 18.5 ± 23.5 |
| a4 (nHz) | 5.0 ± 10.5 | 2.1 ± 9.8 | 2.9 ± 8.9 | −27.9 ± 6.5 or −1.0 ± 6.7 |
 (nHz) |
−6.5 ± 0.3 | −6.1 ± 0.3 | −17.0 ± 2.2 | −15.5 ± 4.0 |
 (nHz) |
86.2 ± 18.7 | 16.7 ± 20.4 | 39.0 ± 20.6 | 34.0 ± 21.8 |
| b(a2) (nHz) | / | / | −10 | −10 |
| b(a4) (nHz) | / | / | −10 | −10 |
Notes. Fiducial biases b(a2) and b(a4) for 16 Cyg A and B were set after inspection of Fig. 5. The lowest (highest) solution of a4 for 16 Cyg B is has a probability of 30% (70%).
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