Free Access
Table 2.
BIC value, reduced χ2 of the image fit, measured H0, tension relative to the true value of 
and integrated stellar velocity dispersion.
| Model: power law | Model: cored power law | Model: composite | |
|---|---|---|---|
| Truth: power law (#1) | BIC = 10220 | BIC = 10230 | |
| – | Δ BIC = 10 | ||
| (σv = 308 km s−1) | χ2 = 1.02 | χ2 = 1.02 | |
 km s−1 Mpc−1 |
 km s−1 Mpc−1 |
– | |
| Tension = 0.5σ | Tension = 0.1σ | ||
 km s−1 |
 km s−1 |
||
| Truth: power law (#2) | BIC = 9786 | BIC = 9797 | |
| – | Δ BIC = 11 | ||
| (σv = 297 km s−1) | χ2 = 0.98 | χ2 = 0.98 | |
 km s−1 Mpc−1 |
 km s−1 Mpc−1 |
– | |
| Tension = 1.1 σ | Tension = 0.8 σ | ||
 km s−1 |
 km s−1 |
||
| Truth: cored power law (#3) | BIC = 14544 | BIC = 9776 | |
| Δ BIC = 4768 | – | ||
| (σv = 245 km s−1 ) | χ2 = 1.46 | χ2 = 0.98 | |
 km s−1 Mpc−1 |
 km s−1 Mpc−1 |
– | |
| Tension = 2.8σ | Tension = 0.7σ | ||
 km s−1 |
 km s−1 |
||
| Truth: cored power law (#4) | BIC = 18565 | BIC = 9768 | |
| Δ BIC = 8797 | – | ||
| (σv = 216 km s−1 ) | χ2 = 1.86 | χ2 = 0.98 | |
 km s−1 Mpc−1 |
 km s−1 Mpc−1 |
– | |
| Tension = 3.9 σ | Tension = 0.7 σ | ||
 km s−1 |
 km s−1 |
||
| Truth: composite (#5) | BIC = 10042 | BIC = 9703 | BIC = 9608 |
| Δ BIC = 434 | Δ BIC = 95 | – | |
| (σv = 253 km s−1 ) | χ2 = 1.00 | χ2 = 0.97 | χ2 = 0.96 |
 km s−1 Mpc−1 |
 km s−1 Mpc−1 |
 km s−1 Mpc−1 |
|
| Tension = 5.2 σ | Tension = 9.1 σ | Tension = 0.7 σ | |
 km s−1 |
 km s−1 |
 km s−1 |
|
| Truth: composite (#6) | BIC = 14170 | BIC = 10764 | BIC = 9715 |
| Δ BIC = 4455 | Δ BIC = 1049 | – | |
| (σv = 207 km s−1 ) | χ2 = 1.36 | χ2 = 1.04 | χ2 = 0.97 |
 km s−1 Mpc−1 |
 km s−1 Mpc−1 |
 km s−1 Mpc−1 |
|
| Tension = 0.8 σ | Tension = 0.6 σ | Tension = 1.0 σ | |
 km s−1 |
 km s−1 |
 km s−1 |
|
Notes. The three columns of the table correspond to the family of mass model fitted on the six simulated lens systems. The ΔBIC is computed relative to the best model for each lens.
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.