first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method D X 0.1562 0.2010 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT X X 0.2209 0.2010 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT