Free Access
Table 1
Definition of the symbols used to expose the wide-field synthesis formalism.
| Symbol & Definition | Plane(s)a | |
|
|
||
| αs | Scanned angle | sky |
| us | Scanned spatial frequency | uv |
| αp | Phased angle | sky |
| up | Phased spatial frequency | uv |
| I | Sky brightness | sky |
| B | Primary beam | sky |
| V | Visibility function | uv & sky |
| S | Sampling function | uv & sky |
| Δ | Set of single-field dirty beams | sky & sky |
| D | Set of wide-field dirty beams | sky & sky |
| Ω | Sky-plane weighting function | sky & sky |
| W | uv-plane weighting function (Ω ⊃ W) | uv & uv |
|
Gridding function ( = g γ) | uv & sky |
| g | uv-plane gridding function | uv |
| γ | Sky-plane gridding function | sky |
| Idirty | Wide-field dirty image | sky |
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.