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Deconvolved size of 0, but multiple gaussians? #188

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jt2553 opened this issue Nov 11, 2022 · 0 comments
Open

Deconvolved size of 0, but multiple gaussians? #188

jt2553 opened this issue Nov 11, 2022 · 0 comments

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@jt2553
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jt2553 commented Nov 11, 2022

PyBDSF deconvolves the source size with the synthesized beam. When the DC_Maj and DC_Min are both 0, then one can take that to mean that it is a point source. If either value is >0, it is a partially resolved source. A point source should have identical peak and total flux values (and island flux).
By this assumed metric, I have three point sources. All three have a significant difference between peak flux and total flux, and all three are made up of multiple Gaussians, as indicated by a S_Code of 'M'.
Are my assumptions above correct, and how can I reconcile the multiple Gaussian sources being point sources and having peak != total flux?

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