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arXiv · 1805.04162

Validating TGAS wide binaries with Gaia DR2 Radial Velocities and Parallaxes

Jeff J. Andrews·Julio Chanamé·Marcel A. Agüeros
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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.

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Jeff J. Andrews, Julio Chanamé, Marcel A. Agüeros. 2018-05-10. Validating TGAS wide binaries with Gaia DR2 Radial Velocities and Parallaxes. https://doi.org/10.3847/2515-5172%2Faac2eb

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