Location of sources with secure redshifts in the HDFS MUSE field. In grey the WFPC2 F814W image. The object categories are identified with the following colours and symbols: blue: stars, cyan: nearby objects with z< 0.3, green: [O ii] emitters, yellow: objects identified solely with absorption lines, magenta: C iii] emitters, orange: AGN, red circles: Lyα emitters with HST counterpart, red triangles: Lyα emitters without HST counterpart. Objects which are spatially extended in MUSE are represented by a symbol with a size proportional to the number of spatially resolved elements.