first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method D S 0.1439 0.4940 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT S S 0.5759 0.4940 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT