Fig. 2
Posterior redshift PDF of two VVDS-Deep spectra. Top: a unimodal zPDF characterizes a very reliable
redshift measurement (a single peak at z=0.879). Bottom: a multimodal zPDF refers to multiple redshift solutions
(multiple peaks) possibly with similar probabilities associated to a diminished confidence level of the MAP estimate at
z = 1.159.
The quantity 
refers to thefixed step of the redshift grid used to compute the zPDFs.
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