Fig. B.5. Same as Fig. 5, but the arrows point at temperatures and luminosities of objects in various spectroscopic studies. D19 stands for Dufton et al. (2019), H08 for Hunter et al. (2008a), R19 for Ramachandran et al. (2019), M06 for Mokiem et al. (2006), B13 for Bouret et al. (2013), and T04/05 for Trundle et al. (2004) and Trundle et al. (2004).
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