Notes. The effective temperature and mass of the source were extrapolated following the methods adopted for main-sequence objects (Martins et al. 2005). The mass derived with this approach comes with a high uncertainty of 35–50%. The typical uncertainty on the reported luminosities in RMS is 34% Mottram et al. (2011). For massive sources, it has been observed that stellar luminosity accounts for the majority of the total luminosity, as demonstrated by Herbig Ae/Be stars (e.g. Fairlamb et al. 2015). Therefore, the bolometric luminosity can be effectively represented by the stellar luminosity for MYSOs.