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Table 2
Variability F-tests for the activity indices. Bold values indicate probabilities lower than 0.05 (95% significance level).
Star | Nbins(S) | Nbins | SCa II | Hα | Na i | He i | ||||||||
σe | ⟨ σi ⟩ | P(Fconst) | σe | ⟨ σi ⟩ | P(Fconst) | σe | ⟨ σi ⟩ | P(Fconst) | σe | ⟨ σi ⟩ | P(Fconst) | |||
|
||||||||||||||
GJ361 | 4 | 4 | 0.0028 | 0.0012 | 0.087 | 0.00034 | 0.00020 | 0.21 | 0.0032 | 0.0014 | 0.10 | 0.000079 | 0.00014 | 0.82 |
GJ2049 | <4 | 4 | 0.00019 | 0.00011 | 0.22 | 0.0036 | 0.0013 | 0.059 | 0.00014 | 0.000068 | 0.13 | |||
GJ3218 | <4 | 4 | 0.0013 | 0.00045 | 0.055 | 0.0077 | 0.0030 | 0.077 | 0.00019 | 0.00016 | 0.40 | |||
Gl1 | 5 | 5 | 0.0015 | 0.00054 | 0.034 | 0.00038 | 0.00011 | 0.018 | 0.0018 | 0.0011 | 0.18 | 0.000081 | 0.00010 | 0.66 |
Gl176 | 6 | 7 | 0.0036 | 0.0027 | 0.27 | 0.00061 | 0.00043 | 0.21 | 0.0064 | 0.0038 | 0.12 | 0.00027 | 0.00015 | 0.097 |
Gl205 | 6 | 6 | 0.0031 | 0.0026 | 0.35 | 0.00029 | 0.00029 | 0.49 | 0.0045 | 0.0029 | 0.17 | 0.00018 | 0.000060 | 0.015 |
Gl273 | 5 | 6 | 0.0037 | 0.0010 | 0.016 | 0.00043 | 0.00022 | 0.080 | 0.0033 | 0.0014 | 0.044 | 0.000055 | 0.00014 | 0.97 |
Gl382 | 5 | 5 | 0.0035 | 0.0031 | 0.41 | 0.00075 | 0.00043 | 0.15 | 0.0051 | 0.0027 | 0.12 | 0.000049 | 0.000091 | 0.87 |
Gl393 | <4 | 4 | 0.00028 | 0.00023 | 0.36 | 0.0020 | 0.0016 | 0.35 | 0.00016 | 0.00015 | 0.49 | |||
Gl433 | 5 | 6 | 0.0024 | 0.00085 | 0.033 | 0.00036 | 0.000065 | 0.00093 | 0.0033 | 0.0011 | 0.014 | 0.00013 | 0.000075 | 0.13 |
Gl436 | 6 | 7 | 0.00095 | 0.00056 | 0.13 | 0.00031 | 0.000065 | 0.00068 | 0.0031 | 0.00097 | 0.0064 | 0.00013 | 0.00011 | 0.32 |
Gl479 | 4 | 4 | 0.0035 | 0.0024 | 0.28 | 0.00045 | 0.00047 | 0.53 | 0.0027 | 0.0026 | 0.48 | 0.00023 | 0.00014 | 0.22 |
Gl526 | 4 | 4 | 0.0015 | 0.00077 | 0.15 | 0.00015 | 0.00011 | 0.31 | 0.0036 | 0.0011 | 0.041 | 0.000054 | 0.000075 | 0.71 |
Gl551 | <4 | 7 | 0.014 | 0.0078 | 0.11 | 0.043 | 0.046 | 0.56 | 0.0064 | 0.0035 | 0.081 | |||
Gl581 | 9 | 10 | 0.0018 | 0.00064 | 0.0041 | 0.00029 | 0.000096 | 0.0016 | 0.0022 | 0.0013 | 0.072 | 0.00011 | 0.000079 | 0.17 |
Gl588 | 4 | 4 | 0.0020 | 0.00044 | 0.017 | 0.00051 | 0.00011 | 0.015 | 0.0040 | 0.00081 | 0.013 | 0.00013 | 0.00011 | 0.40 |
Gl667C | 8 | 7 | 0.0019 | 0.00080 | 0.016 | 0.00018 | 0.00012 | 0.20 | 0.0032 | 0.0014 | 0.026 | 0.000039 | 0.000054 | 0.78 |
Gl674 | 4 | 5 | 0.0012 | 0.0030 | 0.92 | 0.0012 | 0.00070 | 0.16 | 0.0037 | 0.0029 | 0.33 | 0.00025 | 0.00015 | 0.18 |
Gl680 | 4 | 4 | 0.0019 | 0.0015 | 0.37 | 0.00019 | 0.00014 | 0.31 | 0.0024 | 0.0018 | 0.31 | 0.00028 | 0.00012 | 0.096 |
Gl699 | 4 | 4 | 0.0011 | 0.0015 | 0.68 | 0.00065 | 0.00019 | 0.038 | 0.0022 | 0.0025 | 0.58 | 0.00019 | 0.00015 | 0.37 |
Gl832 | 6 | 5 | 0.0037 | 0.0011 | 0.0074 | 0.00012 | 0.00013 | 0.53 | 0.0039 | 0.0015 | 0.047 | 0.000067 | 0.000075 | 0.58 |
Gl849 | 6 | 6 | 0.0016 | 0.0012 | 0.23 | 0.00029 | 0.00012 | 0.044 | 0.0032 | 0.0013 | 0.032 | 0.00012 | 0.000097 | 0.31 |
Gl876 | 4 | 4 | 0.0036 | 0.0014 | 0.075 | 0.00012 | 0.00014 | 0.63 | 0.0054 | 0.0017 | 0.043 | 0.00015 | 0.000082 | 0.18 |
Gl877 | <4 | 5 | 0.00047 | 0.00018 | 0.044 | 0.0065 | 0.0011 | 0.0026 | 0.000098 | 0.00012 | 0.65 | |||
Gl887 | 4 | 4 | 0.0029 | 0.0011 | 0.077 | 0.00033 | 0.00015 | 0.11 | 0.0039 | 0.0014 | 0.063 | 0.00016 | 0.000067 | 0.088 |
Gl908 | 6 | 8 | 0.0022 | 0.00060 | 0.0071 | 0.00022 | 0.00015 | 0.18 | 0.0033 | 0.0015 | 0.024 | 0.00020 | 0.000074 | 0.010 |
HIP12961 | 6 | 6 | 0.0015 | 0.0021 | 0.75 | 0.00017 | 0.00019 | 0.62 | 0.0029 | 0.0016 | 0.10 | 0.00013 | 0.000062 | 0.070 |
HIP19394 | <4 | 6 | 0.00031 | 0.00012 | 0.031 | 0.0036 | 0.0021 | 0.12 | 0.00019 | 0.00020 | 0.53 | |||
HIP38594 | <4 | 4 | 0.00040 | 0.000063 | 0.0064 | 0.0058 | 0.0020 | 0.055 | 0.00013 | 0.00012 | 0.42 | |||
HIP85647 | 5 | 5 | 0.0041 | 0.0016 | 0.046 | 0.00035 | 0.00015 | 0.067 | 0.0040 | 0.0016 | 0.055 | 0.00017 | 0.000056 | 0.028 |
Notes. The F-value used was / ⟨ σi ⟩ 2 where σe is the rms of the index (binned) and ⟨ σi ⟩ the average of the error on the mean for the binned activity data of each star.
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