Table 5
Modeling steps in the multiband modeling code.
| Step | Description | Sections | Criteria | Lens mass parameters | Lens light | Source light | ||
|---|---|---|---|---|---|---|---|---|
| Profiles | Ext. shear | Quasar | Host | |||||
| ① | Pair each band with reference filter and model lens + quasar light together | 2.1.2/2.1.3,2.2 |  |
○ | ○ | ✓ | ✓ | × |
| ② | Modeling of lens + quasar light with all bands at once | 2.1.2/2.1.3,2.2 | ↺2 (Δlog P ≤ 5) | ○ | ○ | ✓ | ✓ | × |
| ③ | Image position modeling with external shear | 2.1.4,2.2 | ↺1 (χ2 < 5, Δlog P ≤ 5) | ✓ | ✓ | ○ | ○ | × |
| ④a | Modeling of arc light + SSB distribution reconstruction | 2.1.5,2.2 | ↺2 (Δlog P ≤ 2) | ✓ | ✓ | ○ | ✓A | ✓ |
| ⑤b | Modeling of arc light + SSB distribution reconstruction | 2.1.5,2.2 | ↺2 (Δlog P ≤ 2) | ✓ | ✓ | ✓ | ○ | ✓ |
Notes. Each step is described briefly in the second column. The modeling technique and stopping criteria are given in the third column with the symbols described below the table. The cycle runs until the stopping criteria in the parentheses are met. The remaining columns show the parameters that vary, are fixed, or are not included. the true value.
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