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astronomy-laboratory / pyoof

pyoof is a Python package which performs out-of-focus (OOF) holography on astronomical beam maps for single-dish radio telescopes.
BSD 3-Clause "New" or "Revised" License
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Window size and beamwidth #14

Open tcassanelli opened 1 year ago

tcassanelli commented 1 year ago

The window size is the height and width of the beam map. The window usually measured in degrees should include the in-focus and out-of-focus maps. We should make a simple routine, or perhaps warning, within pyoof to automatically detect whether a window is too large or too small for a beam in- and out-of-focus.

tcassanelli commented 1 year ago

The correct name of the variable is the box_factor.

tcassanelli commented 1 year ago

The beamwidth, $$BW = 1.22 \lambda/D $$ should be "mapped" by a constant number of points no matter the frequency or diameter of the telescope dish. The idea would be to keep this a constant in order to properly compare results at different frequencies.

tcassanelli commented 1 year ago

https://github.com/astronomy-laboratory/pyoof/blob/501668416e208463ddc4a78c727b7d6b55564202/pyoof/aperture/aperture.py#L513-L520

tcassanelli commented 1 year ago

box_size should be proportional to a factor of the BW, and the resolution should be proportional to the number of data points that we could fill in within a BW?