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.
This magnitude cut at𝑖+ < 24.5 is limited by the depth of the “truth” catalog – the HST COSMOS catalog
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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.