Table 1.
Strong lens models used in this study, their different constraints, the best-fit values of θE, S0, and the average magnification factors, μ, weighted by the surface brightness over the S0(d) image.
| Model name | Constraints | θE, S0 | μ |
|---|---|---|---|
| Img−2MP | 6 lensed-image sets | 4.4″ | 5.5 |
| Img−2MP (L/D) | 6 sets + kinematics of BGG | 4.6″ | 6.9 |
| baseline | 3 sets + extended arcs of S0, S3 | 1.65″ | 6.7 |
| Esr2−3MP | 3 sets + extended arcs of S0, S3 | 0.85″ | 7.3 |
Notes. The first three models share the same configuration and mass parametrization. In the last model Esr2−3MP, we accounted for the additional perturbation caused by foreground galaxies at z = 1.36 and performed lens modeling with three lens planes.
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