first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method D D 0.1538 0.0670 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT X D 0.0748 0.0670 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT