Beam Size / robustness investigation

[keflavich]

There is a broad range of beam sizes in ACES data. Some of the beams are huge and limit our overall ability to make mosaics.

We need to investigate how much we can squeeze down the beam by decreasing the robust parameter. Because the beam size is not a simple function of robust parameter, though, we need to do this investigation systematically.

For example, we might take 1 channel from a given window for each field and image with robust=-2, -1, 0, 1, 2 and produce plots of beam size (beam major axis) vs robust parameter for each. Then, in the end, find what the smallest common beam is that's available to us.

Similarly, we need to do the same for continuum - but for that, we just need to pick the fields with largest beams and reimage them with new robust parameters; there's no time saving in imaging individual windows.

To support this, we should produce some histograms of beam sizes from these tables.