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Validating TGAS wide binaries with Gaia DR2 Radial Velocities and Parallaxes

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arxiv 1805.04162 v1 pith:LYJIBLMU submitted 2018-05-10 astro-ph.SR

Jeff J. Andrews , Julio Chanamé , Marcel A. Agüeros This is my paper · ORCID
classification astro-ph.SR
keywords binarieswidedatagaiaradialvelocitiesaffordsalgorithm
verification ladder T0 review T1 audit T2 compute T3 formal
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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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