Number of galaxies vs. spectroscopic redshift based on our MUSE Deep (left) and MUSE wide (right) data sets. The sources highlighted in green (z₁) and blue (z₂) are those where the [S III] 9068.6 Å line falls in the Spitzer/IRAC 3.6 μm and in the 4.5 μm bands, respectively, and no other strong lines seem likely to be present in the other band. Sources highlighted in cyan (z₃) are those where the Hα line is present in the 3.6 μm band and [S III] is in the 4.5 μm band. Sources highlighted in red (z₄) and yellow (z₅) are those where Hα falls in the 3.6 μm and the 4.5 μm bands, respectively, and no other strong lines are located in the other Spitzer/IRAC band. See Table 2 for the numbers of sources and Fig. 1 for the line location with respect to the IRAC filters.