New Cold Subdwarf Discoveries from Backyard Worlds and a Metallicity Classification System for T Subdwarfs

Year-Month2025-04
JournalThe Astrophysical Journal
AuthorBurgasser, Adam J.; Schneider, Adam C.; Meisner, Aaron M.; Caselden, Dan; Hsu, Chih-Chun; Gerasimov, Roman; Aganze, Christian; Softich, Emma; Karpoor, Preethi; Theissen, Christopher A.; Brooks, Hunter; Bickle, Thomas P.; Gagné, Jonathan; Artigau, Ètienne; Marsset, Michaël; Rothermich, Austin; Faherty, Jacqueline K.; Kirkpatrick, J. Davy; Kuchner, Marc J.; Andersen, Nikolaj Stevnbak; Beaulieu, Paul ; Colin, Guillaume; Gantier, Jean Marc; Gramaize, Leopold; Hamlet, Les; Hinckley, Ken; Kabatnik, Martin; Kiwy, Frank; Martin, David W. ; Massat, Diego H. ; Pendrill, William ; Sainio, Arttu; Schümann, Jörg; Thévenot, Melina; Walla, Jim ; Wędracki, Zbigniew ; Backyard Worlds: Planet 9 Collaboration
Bibcode2025ApJ...982...79B
TelescopeGN/GS
InstrumentGNIRS/FLAMINGOS-2
ParticipantCA/DD
First author participant affiliationUSA
Any author participant affiliationsUSA/Canada/Chile
Program IDGN-2013B-Q-91, GS-2013B-DD-5