first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method C X 0.0352 0.0400 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT X X 0.0544 0.0400 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT