Euclid preparation. XX. The Complete Calibration of the Color-Redshift Relation survey: LBT observations and data release
The Complete Calibration of the Color-Redshift Relation survey (C3R2) is a spectroscopic program designed to empirically calibrate the galaxy color-redshift relation to the Euclid depth (I E = 24.5), a key ingredient for the success of Stage IV dark energy projects based on weak lensing cosmology. A spectroscopic calibration sample that is as
Euclid Collaboration et al.
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