A New M Dwarf Debris Disk Candidate in a Young Moving Group Discovered with Disk Detective
Kuchner, Marc J.; Gagné, Jonathan; Wisniewski, John P.; Hyogo, Michiharu; Silverberg, Steven M.; Bans, Alissa S.; Doll, Katharina; Disk Detective Collaboration; Biggs, Joseph R.; Bhattacharjee, Shambo; Currie, Thayne R.; Debes, John R.; Bosch, Milton; Durantini-Luca, Hugo A.; Enachioaie, Alexandru; Griffith, Philip, Sr.; Piñiero, Fernanda
United States, United Kingdom, Japan
Abstract
We used the Disk Detective citizen science project and the BANYAN II Bayesian analysis tool to identify a new candidate member of a nearby young association with infrared excess. WISE J080822.18-644357.3, an M5.5-type debris disk system with significant excess at both 12 and 22 μm, is a likely member (∼ 90 % BANYAN II probability) of the ∼45 Myr old Carina association. Since this would be the oldest M dwarf debris disk detected in a moving group, this discovery could be an important constraint on our understanding of M dwarf debris disk evolution.