first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method S S 0.9305 0.9305 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT S X 0.597000 0.327000 Bus-DeMeo VIS Erasmus 2019ApJS..242...15E PHOT S X 0.606000 0.324000 Bus-DeMeo VIS Erasmus 2018ApJS..237...19E PHOT