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Table 6

Results of the different period search methods for each star using Ca II IRT.

Star SL PD GLS GP GLS A1 GP A1 Found period ΔPlit
(d) (d) (d) (d) (d) (d) (d) (d)
GX And ... ... Many ... Many ... No period ...
BD+61 195 [18.9] 18.8 18.8, 18.3, 20.4 18.7 18.9 18.9 19.1 ± 0.7 0.8, 0.7
BD+21 652 137.2 27.6, 27.4 27.7 + sidemax 24.7 25.6 [25.4] 25.9 ± 1.0 0.5
BD+52 857 ... 69.9, 22.0, 15.8 22.2, 23.8, 28.3 16.7 30.3 [16.7] [16.5 ± 0.3] ...
HD 36395 33.4, 34.2 34.1 34.3 34.3 34.5 34.3 34.1 ± 0.5 0.3, 0.5
V2689 Ori [11.8] [11.7] [11.8] 11.8 11.8 12.2 [11.9 ± 0.2] 0.4, 0.1
HD 79211 ... 49.6, 29.4 16.9, 23.8 [19.3] 18.1 [17.1] [17.4 ± 1.0] ...
BD+63 869 17.8 17.7 17.8 17.9 17.7 17.8 17.8 ± 0.1 ...
AN Sex ... 21.3 21.3, 10.7 [21.90] 21.3, 10.7 [22.0] [21.1 ± 0.4] 0.5, 0.5
Lalande 21185 97.5 ... 20.2 ... ... ... No period ...
BD+44 2051A ... 137.9 ... ... ... ... No period ...
BD+11 2576 ... 30.1 [30.3, 62.5] ... [30.5] [30.3] [30.3 ±] 0.2 2.3
HD 119850 ... 47.9 48.3 ... ... ... No period ...
HD 147379 ... 20.9 21.3 21.6 21.3 21.4 21.4 ± 0.4 ...
HD 199305 ... 53.1 ... ... ... ... No period ...
HD 216899 38.7 89.2, 38.7, 44.8 45.7 [40.1] ... [40.6] [39.2 ± 0.4] 0.3, 1.7

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