first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method D D 0.0894 0.4510 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT D D 0.4830 0.4510 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT