Low-mass members of nearby young stellar moving groups from <i>Gaia</i> EDR3
نویسندگان
چکیده
Gaia EDR3 offers greatly improved kinematics for nearby objects, including members of young stellar moving groups (NYMGs). In this study, we aim to identify low-mass NYMG (spectral types M0 mid-L) in EDR3. We calculated spatio-kinematic membership probabilities utilising a Bayesian probability calculation scheme developed our previous study. evaluated youth primarily based on colour-magnitude diagram positions. Combining assessment and evaluation, identified ~2900 candidate ~700 previously claimed members. the set ~2200 new members, ~550 appear be NUV brightness. Our pilot spectroscopic study with WiFeS ANU 2.3-m telescope observed 78 candidates, 79 per cent confirmed as Using member sample, estimated an isochronal age beta-Pictoris Moving Group. The mean (~10 Myr), which is around half recent estimates, suggests either truly younger Group or inaccuracies contemporary isochrones. As main results provide lists newly
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 2022
ISSN: ['0035-8711', '1365-8711', '1365-2966']
DOI: https://doi.org/10.1093/mnras/stac358