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Binary Companions of Evolved Stars in APOGEE DR14: Search Method and Catalog of ∼5000 Companions

  • Authors: Adrian M. Price-Whelan, David W. Hogg, Hans-Walter Rix, Nathan De Lee, Steven R. Majewski, David L. Nidever, Nicholas Troup, José G. Fernández-Trincado, Domingo A. García-Hernández, Penélope Longa-Peña, Christian Nitschelm, Jennifer Sobeck, and Olga Zamora

2018 The Astronomical Journal 156 18.

  • Provider: AAS Journals

Caption: Figure 10.

Top: inferred orbital period and eccentricity for all systems with unimodal and bimodal posterior samplings from The Joker. Bottom left: inferred orbital period and surface gravity of the primary star, ﹩\mathrm{log}g﹩. The diagonal line indicates the orbital period of a hypothetical massless companion at the surface of a ﹩1.35\,{M}_{\odot }﹩ primary star with the given ﹩\mathrm{log}g﹩; the vertical line shows the same for ﹩\mathrm{log}g=0﹩, and the horizontal line shows the rough upper boundary of the red clump. Bottom right: stellar parameters for all primary stars in the unimodal and bimodal samples.

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