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In equation 1, the instrumental gain is implicitely
described as a product of two antenna gains:
|
(16) |
This is usually satisfied, unless averaging in time or frequency
introduce a decorrelation. For a point source at the phase center, the
true visibilities are constant in the uv plane with value (
,0),
where
is the source flux density, so we have a set of equations:
|
(17) |
or equivalently:
|
|
|
(18) |
|
|
|
(19) |
Gildas manager
2024-03-28