Table C.2.
Results of phase shift uncertainty analysis using sine-wave injections into ACT AGN light curves.
| AGN | Freq. | Counta | Empirical | Freq. Pair | Empirical | MCMC |
|---|---|---|---|---|---|---|
| (GHz) | Abs.b (%) | (GHz–GHz) | Rel. (%) | (%) | ||
| 95 | 31 | 3.1 | 95–147 | 1.2 | 0.59 | |
| PKS 2131–021 | 147 | 25 | 4.7 | 95–225 | 2.4 | 1.8 |
| 225 | 21 | 6.0 | 147–225 | 3.9 | 1.8 | |
| 95 | 36 | 2.6 | 95–147 | 1.5 | 0.52 | |
| PKS J0805 | 147 | 37 | 4.5 | 95–225 | 3.1 | 1.5 |
| 225 | 28 | 5.5 | 147–225 | 3.3 | 1.5 | |
Notes. The MCMC error was obtained via the method described in Sect. 3.1, and the empirical absolute and empirical relative errors were estimated by injecting known, artificial sine waves into real AGN light curves and measuring how well their phases could be recovered with respect to the input phase (absolute error) and with respect to the best fit in other frequencies (relative error). We note that it is not appropriate to compare the MCMC error directly against the absolute error (see text for details).
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