Free Access

Table 2

Relevant imaging parameters used by AWImager for CoSch-CLEAN, MS-CLEAN, and CS, for the two extended objects.

Algorithm W50 Cygnus A

CoSch-CLEAN MS-CLEAN CS CoSch-CLEAN MS-CLEAN CS

Specific parameter 5 scales 5 scales
Weight Briggs (robust = 1) Uniform

Planes for W-projection 11

Image size 1024 × 1024 512 × 512
Padding 1.6 1.5

Pixel size 13.5′′ 1′′

Threshold 10-3 Jy 10-3 Jy 10-3 0.5 Jy 0.5 Jy 0.5
Gain 0.01 0.4 0.4 0.05 0.05 0.05
Niter 108 103 200 3.104 104 200

Notes. For MS-CLEAN, we have used scales at [0,10,30,70,100] pixels for W50, and [0,2,5,10,15] pixels for Cygnus A.

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.