first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method K Bus VIS Luo 2024AJ....167...13L SPEC P 1.000000 Mahlke VIS Mahlke 2022A&A...665A..26M SPEC X Tholen VIS Lazzaro 2004Icar..172..179L SPEC X 0.999 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT Xe Bus VIS Lazzaro 2004Icar..172..179L SPEC