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Table 3.
Best six to four parameters fit of a quasi-periodic GP model obtained in our analysis of the stellar activity from the SPIRou Bℓ data of the mid-range 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) | |||
| Gl 752A |
 |
 |
 |
 |
 |
 |
6.2 | 0.87 | 128 |
| Gl 48 |
 |
 |
 |
 |
 |
 |
9.4 | 0.86 | 188 |
| Gl 15A |
 |
 |
 |
 |
 |
 |
5.6 | 0.82 | 246 |
| Gl 849 |
 |
 |
 |
 |
 |
10.0 | 1.01 | 185 | |
| Gl 411 |
 |
 |
 |
 |
 |
6.3 | 0.94 | 212 | |
| Gl 687 |
 |
 |
 |
 |
 |
8.2 | 1.10 | 214 | |
| Gl 725A |
 |
 |
 |
 |
8.1 | 0.81 | 214 | ||
| Gl 251* |
 |
 |
 |
 |
9.9 | 0.85 | 177 | ||
| GJ 4333* |
 |
 |
 |
 |
 |
12.7 | 0.83 | 190 | |
| Gl 876 |
 |
 |
 |
 |
 |
8.5 | 0.92 | 88 | |
| PM J09553-2715* |
 |
 |
 |
 |
 |
11.8 | 0.91 | 74 | |
| GJ 3378* |
 |
 |
 |
 |
 |
13.9 | 1.00 | 174 | |
| Gl 169.1A |
 |
 |
 |
 |
 |
13.4 | 0.91 | 172 |
Notes. The asterisk after a star name means that the measured period is more uncertain and was obtained by a five or four parameters fit only.
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