Table 2
Stars with cycles.
| Star | ΔHα | Rotation | Cycle | Amplitude | FAP | |
| [d] | [d] | [%] | ||||
|
|
||||||
| HD 186858 | A | 0.077 | 7.68 | – | 0.010 | 1.0 |
| B | 0.062 | – | 2030 | 0.014 | 0.3 | |
|
|
||||||
| HD 200466 | A | 0.038 | – | 1500 | 0.024 | < 0.1 |
| B | 0.034 | – | trend | >0.015 | < 0.1 | |
|
|
||||||
| BD+182366 | A | 0.039 | – | 1432 | 0.037 | 0.1 |
| B | 0.029 | – | – | – | ||
|
|
||||||
| HD 139569 | A | 0.057 | – | trend | > 0.21 | 2.2 |
| B | 0.062 | – | trend | >0.30 | 0.6 | |
|
|
||||||
| HD 76037 | A | −0.002 | – | trend | >0.014 | 1.0 |
| B | 0.014 | – | trend | >0.022 | 1.3 | |
|
|
||||||
| HD 201936 | A | 0.059 | 13.70 | – | 0.020 | 0.7 |
| B | 0.087 | – | – | |||
|
|
||||||
| HD 213013 | A | 0.031 | – | – | – | |
| B | 0.035 | 3.59 | – | 0.019 | 2.1 | |
|
|
||||||
| 14 Her | 0.009 | 22.38 | – | 0.002 | < 0.1 | |
|
|
||||||
| 51 Peg | 0.003 | 86.49 | 2069 | 0.001, 0.003 | 0.8, 0.6 | |
|
|
||||||
| 61 Cyg B | −0.001 | 16.44 | – | 0.011 | < 0.1 | |
|
|
||||||
| GJ 380 | 0.013 | – | trend | >0.017 | < 0.1 | |
|
|
||||||
| τ Ceti | −0.006 | – | trend | >0.003 | < 0.1 | |
Notes. In the second column we indicate the component, Col. 3 reports the ΔHα for the stars, Col. 4 is the short period, compatible with the rotation in our analysis (where available), Col. 5 reports the period or long-term activity cyclen Col. 6 shows the amplitude of the Hα variation. The last column indicates the false-alarm probability related to the identified periods.
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