Dark Energy Survey Year 6 Results: Redshift Calibration of the MagLim++ Lens Sample
This research calibrated redshifts for MagLim++ lens galaxies using a Self-Organizing Map Photometric Redshift (SOMPZ) method to improve precision for DES Y6 cosmology. The calibration reduced mean redshift uncertainties by 20-30% compared to previous work, proving the sample is robust for high-precision dark energy studies.