Revisiting the theory of interferometric wide-field synthesis

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Table 2

Definition of the uv and sky scales relevant to wide-field interferometric imaging.

Symbol	Definition
[λ, rad] ^a	Conjugate uv and angular scale

d_max, θ_syn	Maximum baseline length & Synthesized beam
d_prim, θ_prim	Antenna diameter & Primary beamwidth
d_alias, θ_alias	Minimum image size for tolerable aliasing
d_field, θ_field	Targeted field of view
d_image, θ_image	Final image size

Notes.

^(a)

The chosen units (radians for θ and wavelength for d) imply that the conjugate scales are linked through θ = 1/d, instead of the usual θ = λ/d.

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