first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method D X 0.2904 0.2950 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT X X 0.3925 0.2950 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT