first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method C 1.000 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT C C 0.2190 0.2100 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT