first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method C X 0.0885 0.0440 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT D X 0.0543 0.0440 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT