Redshift distribution of sources in the HDFS MUSE field. Left: redshift versus HST I₈₁₄AB magnitude. The symbol size is proportional to the object’s HST size. The green circles are for the published spectroscopic redshifts and the brown symbols for the new MUSE measurements. The red arrows show objects without HST counterparts. The dashed line shows the 3σ detection limit for the HST F814W images. Right: the grey histogram shows the distribution of all magnitudes in the HST catalogue while the light blue histogram shows the magnitude distribution of those galaxies with confirmed redshifts and HST counterparts. The last histogram bar centred at I₈₁₄ = 29.75 is for the Lyα emitters not detected in the HST image. The blue curve gives the completeness of the redshift identification with respect to the identified sources in the HST images.