Table 4
Summary of the ACF analysis of the TESS light curves.
| Star | ACF-fit τ (d) | ACF-type | ACF-fit form |
|---|---|---|---|
| HIP 490 |  |
sin + decay | exp |
| HIP 1481 | sin + decay | bad fit | |
| TYC 4500-1478-1 |  |
sin + decay | exp |
| V1090 Tau |  |
sin + decay | exp (†) |
| V1298 Tau |  |
per + decay | lin (†) |
| HD 285507 | other | ||
| HIP 19859 | >>26 | per | |
| TAP 26 | >>24 | per | |
| HD 285773 | >>25 | per | |
| V1202 Tau | >>24 | sin | |
| HIP 21112 | >>26 | sin | |
| V830 Tau | >>24 | sin | |
| TYC 5909-319-1 |  |
sin + decay? | exp (t) |
| HD 32923 | other | ||
| HD 36108 | other | ||
| HD 38283 |  |
per | exp (t) |
| HIP 27072 | other | ||
| HD 45289 | other | ||
| HD 59747 | >>27 | sin | |
| HD 63433 |  |
sin + decay | lin (t) |
| HD 70573 | >>25 | sin | |
| TYC 1989-0049-1 | other | ||
| HD 107877 | other | ||
| BD+26 2342 |  |
sin + decay? | exp |
| BD+27 2139 | >>27 | sin | |
| HIP 61205 | other | ||
| HD 122862 | other | ||
| HD 167389 | other | bad fit | |
| HIP 92680 |  |
per + decay | lin |
| HD 235088 | other | ||
| HD 191408 | other | ||
| HD 196378 | other | ||
| HIP 105388 |  |
per + decay | exp |
Notes. ‘sin’: the ACF is clearly sinusoidal without an apparent time-decay; ‘per’: the ACF is periodic without an apparent time-decay; ‘decay’: a time-decay is seen in the ACF; ‘other’: the ACF does not fit in the other categories; ‘exp’: fit to an exponential decay following GI17; 'lin': fit to a linear decay following SA21; (†)the best fit does not properly model the curve
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