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Table 8.
Best six, five, or four parameters fit of a quasi-periodic GP model obtained in our analysis of the stellar activity from the SPIRou Bℓ data of the late-M dwarfs in our sample.
| Star | Rotation period | Mean Bℓ | White noise | Amplitude | Decay time | Smoothing factor | rms |  |
Visits |
|---|---|---|---|---|---|---|---|---|---|
| Prot [d] | μ [G] | σ [G] | α [G] | l [d] | β | [G] | |||
| Priors | 𝒰(2, 300) | 𝒰(−∞, + ∞) | 𝒰(0, +∞) | 𝒰(0, +∞) | 𝒰(50, 1000) | 𝒰(0.25, 1.25) | |||
| GJ 1289 |
 |
 |
 |
 |
 |
 |
14.7 | 0.67 | 180 |
| GJ 1103* |
 |
 |
 |
 |
16.4 | 0.83 | 62 | ||
| Gl 699* |
 |
 |
 |
 |
8.7 | 0.77 | 243 | ||
| Gl 15B* |
 |
 |
 |
 |
16.5 | 0.78 | 184 | ||
| GJ 1151* |
 |
 |
 |
 |
15.7 | 0.83 | 153 | ||
| Gl 905 |
 |
 |
 |
 |
 |
 |
12.6 | 0.73 | 216 |
| GJ 1286* |
 |
 |
 |
 |
25.0 | 0.89 | 108 | ||
| GJ 1002 |
 |
 |
 |
 |
 |
19.9 | 1.05 | 154 |
Notes. The asterisk after a star name means that the measured period is more uncertain and was obtained by a four-parameter fit only.
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