first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method D S 0.515000 0.485000 Bus-DeMeo VIS Erasmus 2018ApJS..237...19E PHOT D S 0.517000 0.483000 Bus-DeMeo VIS Erasmus 2019ApJS..242...15E PHOT L 0.420 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT