M to mid-L type members of nearby young moving groups from Gaia EDR3

  • Lee, Jinhee (Pusan National University) ;
  • Song, Inseok (The University of Georgia) ;
  • Murphy, Simon J. (The University of New South Wales Canberra)
  • Published : 2021.10.13

Abstract

In this study, we aim to identify low-mass members of nearby, young stellar moving groups (NYMGs) from Gaia EDR3. The spatio-kinematic membership probabilities of the NYMGs were calculated utilizing the Bayesian membership probability calculation tool developed in our previous study. The youth of these spatio-kinematic members were assessed using positions on color-magnitude diagrams. We identified ~2200 new low-mass NYMG candidate members, that can be confirmed by follow-up spectroscopic observations. We performed pilot spectroscopic observation with WiFeS at Siding Spring Observatory observing 79 candidates, and about 80 per cent of them were confirmed as members.

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