beam_to_pixels module

FWHM = 2.355 σ = 2* sqrt(2*ln(2)) see https://en.wikipedia.org/wiki/Full_width_at_half_maximum and https://www.eaobservatory.org/jcmt/faq/how-can-i-convert-from-mjybeam-to-mjy/ or https://www.eaobservatory.org/jcmt/?s=beam+to+pixels for a description of what’s going on

This script derives the beam area response in pixels required to normalize the summed signal from an image area in pixels i.e. you divide the summed signal by the beam area

tw_source_finder.beam_to_pixels.calculate_area(fwhm_arcsec, fwhm_min, pixel=2)

tw_source_finder.beam_to_pixels.main(argv)