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Table 4
Properties of hysteresis loops of μ Cep (Sect. 3), Betelgeuse (Gray 2008), and 3D simulation (Sect. 4).
| Mask | RV range | (RVmin + RVmax)∕2 | T range | Timescale | |
|---|---|---|---|---|---|
| (km s−1) | (km s−1) | (K) | (d) | ||
| C1 | 5.9 | 19.2 | |||
| μ Cep | C2 | 4.0 | 24.1 | ||
| cycle 1 | C3 | 3.6 | 24.3 | 68 | 552 |
| C4 | 4.2 | 23.5 | |||
| C5 | 3.5 | 22.8 | |||
| C1 | 2.8 | 17.6 | |||
| μ Cep | C2 | 2.9 | 20.9 | ||
| cycle 2 | C3 | 2.8 | 20.5 | 62 | 310 |
| C4 | 1.4 | 19.7 | |||
| C5 | 1.3 | 20.3 | |||
| C1 | 11.5 | 22.1 | |||
| μ Cep | C2 | 9.3 | 24.2 | ||
| cycle 3 | C3 | 9.6 | 23.5 | 166 | 840 |
| C4 | 9.5 | 22.1 | |||
| C5 | 7.4 | 20.7 | |||
| Betelgeuse | 7–8 | ~100 | ~400 | ||
| C1 | 2.4 | −0.6 | |||
| C2 | 3.1 | 1.1 | |||
| 3D | C3 | 6.5 | 3.4 | 206 | 324 |
| C4 | 8.5 | 4.0 | |||
| C5 | 9.7 | 5.4 | |||
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