Table 1
Typical binary system physical parameters (high-field range), and the corresponding dimensionless parameters.
| Physical parameters | Ratios | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Scenario | m1, m2 | R1, R2 |  ,  |
P1, P2 | Porb | γflg = Γflg /ΓB | γtide = Γtide /ΓB | η = FB/FN | ϵ = Porb/τ |
| MMS | 10 M⊙ | 4.5 R⊙ | 104 G | 5d | 5d |  |
 |
5 × 10−10 | 2 × 10−9 |
| WD | 1 M⊙ | 104 km | 109 G | 1 h | 10 h |  |
 |
1 × 10−10 | 1 × 10−7 |
| NS | 1.4 M⊙ | 15 km | 1015 G | 10 min | 1 h |  |
 |
7 × 10−15 | 5 × 10−7 |
Notes. γflg = Γflg/ΓB the ratio between figure effects and magnetic torques (cf. Eq. (9)); γtide = гtide/ΓB the ratio between tidal and magnetic torques (cf. Eq. (11)); η = FB/FN the ratio between forces (Eq. (18)); and ϵ = Porb/τ the ratio between dynamical timescales (Eqs. (15)–(16)). We assume a binary system with two components of the same kind – that is, MMS-MMS, WD-WD or NS-NS pairs.
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