Top: distribution of log g values collated into the NEMESIS Catalogue of YSOs in the OSFC (Sect. 3.5). Bottom: general distribution of EW values for absorption lines collected as gravity proxy. The dotted red line reflects the continuum level. Violins are shown at a fixed width for improving visualisation. Violin’s internal dotted lines reflect distributions’ first and third quartiles, and dashed lines reflect their median.