first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method S A 0.2756 0.2940 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT A A 0.3470 0.2940 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT