Journal
ASTROPHYSICAL JOURNAL
Volume 862, Issue 2, Pages -Publisher
IOP Publishing Ltd
DOI: 10.3847/1538-4357/aaca2e
Keywords
methods: data analysis; proper motions; stars: kinematics and dynamics
Categories
Funding
- National Aeronautics and Space Administration (NASA)
- National Science Foundation
- NASA
- Space Telescope Science Institute under U.S. Government [NAG W-2166]
- National Geographic Society
- Sloan Foundation
- Samuel Oschin Foundation
- Eastman Kodak Corporation
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In this paper, we examine the nearest 100 pc entries in Data Release 2 of Gaia to identify previously unrecognized candidate members in young associations. We analyze 695 952 stars with the BANYAN Sigma Bayesian classification software and discover 898 new high-likelihood candidate members that span a wide range of properties, from spectral types B9 to L2, including 104 comoving systems, 111 brown dwarfs, and 31 new bona fide members. Our sample is mostly composed of highly active M dwarfs and will be crucial in examining the low-mass end of the initial mass function of young associations. Our sample includes new candidate members near the Galactic plane where previous surveys suffered from a high rate of contamination. This paper represents the first step toward a full reassessment of young associations in the solar neighborhood with the second data release of the Gaia mission.
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