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Table 3
χ2, BIC and AIC for various models with k degrees of freedom used to fit the Lyman-α line profile.
| Model | χ2 | k | d.o.f. | BIC | AIC |
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|
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| Reference model | 36.1 | 9 | 40 | 71.1 | 54.1 |
| TISM ≠ 0 | 35.8 | 10 | 39 | 74.7 | 55.8 |
| Double Gaussian LSF | 34.4 | 12 | 37 | 81.1 | 58.4 |
| 2 different Voigt profiles | 35.5 | 11 | 38 | 78.3 | 57.5 |
| 1-Voigt profile | 41.5 | 8 | 41 | 72.6 | 57.5 |
| 2-Gaussian profile | 166.6 | 8 | 41 | 197.7 | 182.6 |
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