Open Access

Table 5.

Root-mean-square (rms) offset and χim, MP2 between the observed and model-predicted image positions from the iso_halo and baseline models.

Image iso_halo baseline


system χim2 rms χim2 rms
1 0.003 0.0014″ 0.08 0.008″
2 0.46 0.031″ 0.16 0.018″
3 0.34 0.014″ 0.88 0.025″
4.1 2.21 0.44″ 3.02 0.46″
4.2 0.07 0.020″ 0.13 0.032″
4.3 0.30 0.21″ 0.38 0.19″
5 1.87 0.33″ 1.45 0.27″
6 1.03 0.29″ 1.24 0.32″

all 6.27 0.24″ 7.34 0.24″

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.