Table E.1
AIC and BIC comparison of parametric models.
| Disc | Functional Forms | AIC Confidence (σ) | ΔBIC |
|---|---|---|---|
| HD 9672 | Double power law | — | — |
| Double Gaussian | 2.9 | >10 | |
| HD 10647 | Double Gaussian | — | 8.2 |
| Double power law | 3.6 | — | |
| Double power law + 1 gap | 2.7 | >10 | |
| HD 14055 | Double power law | — | — |
| Double Gaussian | 0.77 | >10 | |
| HD 15115 | Double power law + 1 gap | — | — |
| Double Gaussian | 4.9 | >10 | |
| Double power law | >5 | >10 | |
| HD 15257 | Power law + error function | — | — |
| Double power law | 0.97 | 0.16 | |
| HD 32297 | Double power law | 1.4 | — |
| Double Gaussian | 4.7 | >10 | |
| Gaussian + double power law | — | >10 | |
| HD 39060 | Double power law | 1.8 | — |
| Double Gaussian | — | >10 | |
| HD 61005 | Double Gaussian | — | — |
| Double power law | >5 | >10 | |
| Triple Gaussian | 0.17 | >10 | |
| HD 76582 | Asymmetric Gaussian | — | — |
| Double power law | 2.8 | >10 | |
| Power law + error function | 4.1 | >10 | |
| Triple power law | 1.1 | >10 | |
| HD 84870 | Double power law | — | — |
| Power law + error function | 1.7 | 4.7 | |
| HD 92945 | Double Gaussian | — | — |
| Double Gaussian + 1 gap | 1.9 | >10 | |
| Triple Gaussian | 1.8 | >10 | |
| Double power law | >5 | >10 | |
| Double power law + 1 gap | 4.2 | >10 | |
| Double power law + 2 gaps | 2.3 | >10 | |
| Triple power law + 1 gap | 2.4 | >10 | |
| HD 95086 | Double power law | 1.9 | — |
| Double Gaussian | 2.2 | >10 | |
| Triple power law | — | >10 | |
| HD 107146 | Triple power law + 2 gaps | — | — |
| Triple power law + 1 gap | >5 | >10 | |
| Triple power law | >5 | >10 | |
| Double Gaussian | >5 | >10 | |
| Triple Gaussian | >5 | >10 | |
| HD 109573 | Double Gaussian | — | — |
| Single Gaussian | >5 | >10 | |
| Asymmetric Gaussian | >5 | >10 | |
| Double power law | 5.0 | 4.7 | |
| HD 121617 | Double Gaussian | — | 7.3 |
| Single Gaussian | >5 | >10 | |
| Power law + error function | 3.9 | — | |
| Double power law | 4.0 | 0.15 | |
| Asymmetric Gaussian | >5 | >10 | |
| HD 131488 | Double Gaussian | — | — |
| Triple Gaussian | >5 | >10 | |
| Double power law | >5 | >10 | |
| HD 131835 | Double Gaussian | — | — |
| Triple Gaussian | 1.4 | >10 | |
| Double power law | >5 | >10 | |
| HD 145560 | Double power law | 3.9 | — |
| Double Gaussian | — | 7.1 | |
| Single Gaussian | >5 | >10 | |
| HD 161868 | Double power law | — | — |
| Power law + error function | 0.72 | 1.5 | |
| Asymmetric Gaussian | 1.1 | 2.5 | |
| HD 170773 | Asymmetric Gaussian | — | — |
| Double power law | 0.33 | 0.61 | |
| HD 197481 | Triple power law + 1 gap | — | >10 |
| Triple power law | 3.4 | — | |
| Double power law | 6.6 | >10 | |
| Double Gaussian | 4.2 | 6.2 | |
| Triple Gaussian | 2.8 | >10 | |
| HD 206893 | Double Gaussian | — | >10 |
| Triple Gaussian | 1.3 | >10 | |
| Double power law | 2.5 | — | |
| Double power law + 1 gap | 1.1 | >10 | |
| Triple power law | 3.3 | >10 | |
| Triple power law + 1 gap | 1.3 | >10 | |
| TYC 9340-437-1 | Asymmetric Gaussian | 2.2 | — |
| Double power law | 2.3 | 0.85 | |
| Triple power law | — | >10 | |
| Double Gaussian | 3.3 | >10 | |
| HD 218396 | Asymmetric Gaussian | 0.18 | — |
| Double Gaussian | — | >10 | |
| Double power law | 3.0 | >10 | |
| Triple power law | 1.2 | >10 | |
Notes. We calculated AIC and BIC differences for each disc relative to the functional form with the lowest criterion value, indicated by a dash (—). The best-fit functional form is determined on a case-by-case basis for each disc, as described throughout the results section, and is indicated by bold text. We convert AIC differences to a confidence interval, while BIC differences > 10 are considered to be a strong indicator of significance.
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