The BANYAN All-Sky Survey for Brown Dwarf Members of Young Moving Groups
Jonathan Gagn\'e, David Lafreni\`ere, Ren\'e Doyon, Jacqueline K., Faherty, Lison Malo, Kelle L. Cruz, \'Etienne Artigau, Adam J. Burgasser,, Marie-Eve Naud, Sandie Bouchard, John E. Gizis, Lo\"ic Albert

TL;DR
The BASS survey identifies new brown dwarfs and low-mass stars in young moving groups, revealing objects near planetary masses and providing insights into their properties and memberships.
Contribution
This work introduces the BASS survey and reports the discovery of numerous low-mass objects, including some with planetary masses and new members of young moving groups.
Findings
Discovery of 44 new low-mass stars and 69 brown dwarfs.
Identification of objects with planetary mass estimates.
Detection of new members of young moving groups.
Abstract
We describe in this work the BASS survey for brown dwarfs in young moving groups of the solar neighborhood, and summarize the results that it generated. These include the discovery of the 2MASS J01033563-5515561 (AB)b and 2MASS J02192210-3925225 B young companions near the deuterium-burning limit as well as 44 new low-mass stars and 69 new brown dwarfs with a spectroscopically confirmed low gravity. Among those, ~20 have estimated masses within the planetary regime, one is a new L4 bona fide member of AB Doradus, three are TW Hydrae candidates with later spectral types (L1-L4) than all of its previously known members and six are among the first contenders to low-gravity L5 / brown dwarfs, reminiscent of WISEP J004701.06+680352.1, PSO J318.5338-22.8603 and VHS J125601.92-125723.9 b. Finally, we describe a future version of this survey, BASS-Ultracool, that…
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