Journal
ASTRONOMICAL JOURNAL
Volume 154, Issue 2, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.3847/1538-3881/aa77fa
Keywords
binaries: spectroscopic; open clusters and associations: individual: (beta Pictoris Moving Group) stars: activity; stars: kinematics and dynamics; stars: low-mass; stars: pre-main sequence
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Funding
- National Aeronautics and Space Administration [NNH14CK55B]
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We confirm 66 low-mass stellar and brown dwarf systems (K7-M9) plus 19 visual or spectroscopic companions of the beta Pictoris moving group (BPMG). Of these, 41 are new discoveries, increasing the known low-mass members by 45%. We also add four objects to the 14 known with masses predicted to be less than 0.07 M-circle dot. Our efficient photometric + kinematic selection process identified 104 low-mass candidates, which we observed with ground-based spectroscopy. We collected infrared observations of the latest spectral types (>M5) to search for low-gravity objects. These and all
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