first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method C C 0.2482 0.2450 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT P C 0.840000 0.160000 Mahlke VIS Mahlke 2022A&A...665A..26M SPEC