first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method C S 0.0186 0.1050 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT S S 0.1833 0.1050 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT