Validating TGAS Wide Binaries with Gaia DR2 Radial Velocities and Parallaxes
Abstract
Featuring greatly improved astrometry and precise radial velocities (RVs), the second data release (DR2) from Gaia affords us a unique opportunity to test the validity of samples of stellar wide binaries. In a previous work, we presented a set of wide binaries identified in the joint Tycho-Gaia Astrometric Solution catalog. Here, we use DR2 to confirm the low contamination rate of this sample, thereby verifying the effectiveness of our algorithm for application to DR2 data.
- Publication:
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Research Notes of the American Astronomical Society
- Pub Date:
- May 2018
- DOI:
- 10.3847/2515-5172/aac2eb
- arXiv:
- arXiv:1805.04162
- Bibcode:
- 2018RNAAS...2...29A
- Keywords:
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- Astrophysics - Solar and Stellar Astrophysics
- E-Print:
- Accepted for publication in Research Notes of the AAS