Mass versus SFR of galaxies at z ∼ 0.9. This work’s whole FIR emitting sample (green circles and triangles) and non-FIR emitters from the Hβ OTELO sample of Navarro-Martínez et al. (2021), represented by empty crosses. Filled circles or triangles represent FIRELGs, and empty markers are FIRnoELGs. Downward triangles indicate sources affected by FIR upper limits (as elaborated in Sect. 3.1), which could result in an overestimation of the plotted parameters.