first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method B B 0.5836 0.4000 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT X B 0.4465 0.4000 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT