first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method D D 0.2095 0.1990 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT S D 0.1837 0.1990 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT