THE CANADA‐FRANCE REDSHIFT SURVEY

The Canada‐France Redshift Survey (CFRS), conducted with the CFHT MOS spec‐trograph, has provided secure redshifts for ∼600 galaxies with 0≤z≤1.3 of which more than 350 are at z≥0.5. This unique data set allows to investigate the evolution of the luminosity function of galaxies over timescales ∼50% the present age of the universe. We find that the luminosity function of red galaxies does not change much over the redshift range of the CFRS, while the luminosity function of blue galaxies is strongly evolving, consistent with a ∼1 magnitude brightening at z∼0.75 (but equivalently described by an increase in comoving density). Morphological information with HST will help to establish whether the evolution we observe is due to simple brightening of individual objects with look‐back time.

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