Open Access
Table 2.
Comparison between our new lens model for A2744 and the one from R21.
| Comparison between published lens models | |||
|---|---|---|---|
| Model | Nimages | Nsources | Δrms [″] |
| This work | 90 | 30 | 0.37 |
| R21 | 83 | 29 | 0.67 |
Notes. Nimages is the number of multiple image used as model constraints, Nsources is the number of background sources, and Δrms [″] is the total root-mean-square displacement between the observed and predicted image positions (see Eq. (2)).
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