Open Access

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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