ML models on 9-band COSMOS catalog data detect 30-80% of unrecognized blends (17% of sample) while rejecting 10-50% of galaxies, performing similarly with optical bands only.
We keep sources that are up to 2 mags fainter than the base COSMOS sample (ip_MAG_AUTO < 24.5 ) to al- low for blending with fainter sources
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Catalog-based detection of unrecognized blends in deep optical ground based imaging
ML models on 9-band COSMOS catalog data detect 30-80% of unrecognized blends (17% of sample) while rejecting 10-50% of galaxies, performing similarly with optical bands only.