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Detecting and Characterizing Companions with a Calibrated Gaia DR2, DR3, and Hipparcos Catalog (G23H)

  • Authors: William Thompson, Dori Blakely, Jerry W. Xuan, Simon Blouin, Jingwen Zhang, Doug Johnstone, Jean-Baptiste Ruffio, Eric Nielsen, Jessica Speedie, Brendan P. Bowler, Alexandre Bouchard-Côté, Kyle Franson, Sarah Blunt, William Roberson, Ryan Cloutier, Andre Fogal, Kaitlyn Hessel, Christian Marois, Alexandra Rochon

William Thompson et al 2026 The Astronomical Journal 172 .

  • Provider: AAS Journals

Caption: Figure 13.

Posterior for the system HIP 389 (Blanco 1-W86), a spectroscopic binary (J. F. González et al. 2024). This shows how the constraints from Gaia RV variability (via the approach from Q. Chance et al. 2025) can provide an orthogonal constraint beyond absolute astrometry.

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