VizieR Online Data Catalog: Close encounters to the Sun in Gaia DR3 (Bailer-Jones, 2022)
Abstract
The present paper continues a study to discover and characterize close encounters, one that started with Hipparcos (Bailer-Jones, 2015A&A...575A..35B, Cat. J/A+A/575/A35; Paper I), then Gaia DR1 (Bailer-Jones 2018A&A...609A...8B, Cat. J/A+A/609/A8; Paper II) - both complemented by non-Gaia data - and most recently Gaia DR2 (Bailer-Jones et al. 2018AJ....156...58B, Cat. I/347; Paper III). Since the first Gaia data release, astrometry has been in abundance and the comparative lack of relative radial velocities (RVs) has been the limiting factor of these studies - a complete reversal of the pre-Hipparcos situation. Gaia DR3 (Gaia Collaboration et al., 2022, Cat. I/355) now provides radial velocities for 34 million bright stars (99% with G<15.7mag) with median uncertainties of 3.3km/s (central 90% range 0.4+/-7.8km/s). This is nearly a fivefold increase in the number of sources with radial velocities in Gaia DR2, and constitutes the largest radial velocity survey to date.
Here I use these data to identify stars that approach within 1pc of the Sun. (1 data file).- Publication:
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VizieR Online Data Catalog
- Pub Date:
- August 2022
- DOI:
- 10.26093/cds/vizier.19359009
- Bibcode:
- 2022yCat..19359009B
- Keywords:
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- Stars: nearby;
- Stars: distances;
- Radial velocities;
- Optical