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Table 2.
Modeling of the deflector total mass distribution using the extended source modeling.
| Multiple images A, B | |||||||
| PIEMD | |||||||
| x [″] | y [″] | q | θ [rad] | θE [″] | rcore [″] | ||
| 0.24 | −0.14 | 0.79 | 0.14 | 10.9 | [0.0] | ||
| Shear | γext | ϕext [rad] | |||||
| 0.25 | 1.45 | ||||||
| Nobs = 5831 | d.o.f. = 4576 |  |
|||||
| SPEMD | |||||||
| x [″] | y [″] | q | θ [rad] | θE [″] | rcore [″] | γ′ | |
| 0.18 | −0.14 | 0.75 | 0.09 | 3.9 | [0.0] | 1.57 | |
| Shear | γext | ϕext [rad] | |||||
| 0.06 | 1.07 | ||||||
| Nobs = 5831 | d.o.f. = 4571 |  |
|||||
| Multiple images A, B, C | |||||||
| SPEMD | |||||||
| x [″] | y [″] | q | θ [rad] | θE [″] | rcore [″] | γ′ | |
| 0.05 | −0.17 | 0.62 | 0.04 | 4.2 | [0.0] | 1.58 | |
| Shear | γext | ϕext [rad] | |||||
| 0.08 | 0.28 | ||||||
| Source | Dds/Ds = 0.543 | (equals to zC = 1.69) | |||||
| Nobs = 7195 | d.o.f. = 5396 |  |
|||||
| PIEMD+rc | |||||||
| x [″] | y [″] | q | θ [rad] | θE [″] | rcore [″] | ||
| 0.09 | −0.12 | 0.84 | 0.15 | 18.7 | 3.4 | ||
| Shear | γext | ϕext [rad] | |||||
| 0.09 | 1.25 | ||||||
| Source | Dds/Ds = 0.590 | (equals to zC = 2.04) | |||||
| Nobs = 7195 | d.o.f. = 5583 |  |
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Notes. The two upper models were optimized by exploting the double-peak source AB, while the two bottom models also include source C. The parameters are defined as in Table 1.
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