Local specific angular momentum (j∕m = R × v_rot) as a function of radius for a sample of low- and high-mass protostars and YSOs. The high-mass sample (Guzmán et al. 2014; Beltrán & de Wit 2016) corresponds to high-mass YSOs with disc candidates, the low-mass objects (Ohashi et al. 1997; Sakai et al. 2014; Oya et al. 2016) correspond to envelopes and discs identified around low-mass Class 0 protostars. Where no explicit information was available, we adopt a 50% uncertainty for the rotation radius, and a linearly propagated 50% uncertainty on the estimated specific angular momentum. For our target, we estimate a 52% uncertainty on these values based on the uncertainty in the disc radius estimate. In this plot, we made no attempt to correct for the source inclination angle. The dashed line shows the j = 0.001 km s⁻¹ line (Belloche 2013) and an angular velocity Ω = 1.8 km s⁻¹ pc⁻¹. For the high-mass sample, we show the j = 0.01 km s⁻¹ pc⁻¹ line and Ω = 50 km s⁻¹ pc⁻¹. The grey shaded area shows our range of disc size estimates.