Table 3.
Model summary.
| Model ID | N. par. | DOF | Δrms [″] |
 |
BIC | AICc | Description |
|---|---|---|---|---|---|---|---|
| No-foreground | 14 | 52 | 0.87 | 103 | 281 | 257 | Foreground galaxies are not included |
| Reference | 14 | 52 | 0.75 | 80 | 242 | 220 | Foreground galaxies included in member scalings |
| Two-scalings | 16 | 50 | 0.75 | 79 | 249 | 226 | Foreground galaxies with different scaling relations |
| Free-scaling | 16 | 50 | 0.74 | 80 | 250 | 226 | Member scaling relation slopes, α and γ, are free |
| External-shear | 16 | 50 | 0.75 | 80 | 250 | 226 | Same as reference plus external shear |
| 3-PIEMD-circ. | 18 | 48 | 0.72 | 52 | 231 | 206 | Third smooth component with zero ellipticity |
| 3-PIEMD | 20 | 46 | 0.69 | 48 | 235 | 210 | Three smooth components |
| Models with B-spline perturbation | |||||||
| PertBS-3-1DM | 21 | 45 | 1.26 | 208 | 369 | 349 | – |
| PertBS-4-1DM | 28 | 38 | 1.28 | 241 | 462 | 444 | – |
| PertBS-5-1DM | 37 | 29 | 1.09 | 197 | 455 | 475 | – |
| PertBS-2-2DM | 22 | 44 | 0.69 | 63 | 259 | 234 | – |
| PertBS-3-2DM | 27 | 39 | 0.53 | 35 | 252 | 232 | – |
| PertBS-4-2DM | 34 | 32 | 0.50 | 27 | 273 | 275 | – |
| PertBS-5-2DM | 43 | 23 | 0.41 | 22 | 306 | 384 | – |
Notes. For each model, we present the number of free parameters (N. par.), the number of degrees of freedom (d.o.f.), the root-mean-square difference between the model predicted and observed multiple image positions (Δrms), the minimum χ2, the BIC and AICc values, and a short description of the model parameterisation.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.