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Table 1.
Main differences between the SALT2.4 model and the SUGAR model.
| Model properties | SALT2 | SUGAR |
|---|---|---|
| Rest frame wavelength coverage | 2000–9200 Å | 3254–8649 Å |
| Rest frame phase coverage | −20 to +50 days | −12 to +48 days |
| Training data | Spectroscopy and photometry | Spectrophotometric time series |
| Redshift range | Low and hight redshift | Low redshift |
| Interpolation | Cubic spline | Gaussian process with squared exponential kernel |
| Intrinsic properties from | Weighted PCA like on SED | EM-FA on spectral features |
| Number of intrinsic component | 1 | 3 |
| Color | Color law (third order polynomial) | Cardelli et al. (1989) law |
| Error on the model | Yes | No |
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