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PRIMARY

PRIMARY
Apply primary beam correction to an interferometer map (i.e. DIVIDE the
input image by the primary beam). The primary beam is assumed to be a
Gaussian. After this correction, the noise is increasing exponentially
with the distance to the map center, and the resulting image has thus to
be truncated at some radius.
For the Plateau de Bure interferometer, the typical values of the FWHM
primary beam is:
58" at 85 GHz (3.5 mm)
50" at 100 GHz (3 mm)
43" at 115 GHz (2.7 mm)
21" at 230 GHz (1.3 mm)

Gildas manager
2018-06-16