Nicky Joseph Hubertus Catharina Hacquier

Beyond the z = 15 Catalogue Wall: Conditional GCFT Prior Grading and Image-Level Vetting in COSMOS-Web

A claim-bounded JWST study combining a blind JADES DR5 ranking ablation with a 784,016-row COSMOS2025 posterior audit, extended-grid EAZY refitting, and image-level vetting. COSMOS2025 521341 survives as a spectroscopy-priority target, but remains unconfirmed; the blind compariso...

Beyond the z = 15 Catalogue Wall: Conditional GCFT Prior Grading and Image-Level Vetting in COSMOS-Web

A claim-bounded JWST study combining a blind JADES DR5 ranking ablation with a 784,016-row COSMOS2025 posterior audit, extended-grid EAZY refitting, and image-level vetting. COSMOS2025 521341 survives as a spectroscopy-priority target, but remains unconfirmed; the blind compariso...