2021
DOI: 10.1093/mnras/stab2349
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Close substellar-mass companions in stellar wide binaries: discovery and characterization with APOGEE and Gaia DR2

Abstract: We present a search for close, unresolved companions in a subset of spatially resolved Gaia wide binaries containing main-sequence stars within 200 pc of the Sun, utilizing the APOGEE–Gaia Wide Binary Catalog. A catalog of 37 wide binaries was created by selecting pairs of stars with nearly identical Gaia positions, parallaxes, and proper motions, and then confirming candidates to be gravitationally-bound pairs using APOGEE radial velocities. We identify close, unresolved stellar and substellar candidate compa… Show more

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Cited by 3 publications
(2 citation statements)
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“…and Orbital Period An advantage conferred by the APOGEE survey is that multi-epoch data were obtained, and RVs from these multiple epochs enable studies of stellar and substellar multiplicity (Troup et al 2016;Badenes et al 2018;Lewis et al 2022). 15 When a sufficient number of epochs are available for a particular star, it is possible to derive or constrain orbital parameters (e.g., Price-Whelan et al 2020; see below), however, this only applies to a minority fraction of APOGEE targets, since the more typical number of APOGEE visits is only three per star.…”
Section: Binary Properties As a Function Of Rv Variabilitymentioning
confidence: 99%
“…and Orbital Period An advantage conferred by the APOGEE survey is that multi-epoch data were obtained, and RVs from these multiple epochs enable studies of stellar and substellar multiplicity (Troup et al 2016;Badenes et al 2018;Lewis et al 2022). 15 When a sufficient number of epochs are available for a particular star, it is possible to derive or constrain orbital parameters (e.g., Price-Whelan et al 2020; see below), however, this only applies to a minority fraction of APOGEE targets, since the more typical number of APOGEE visits is only three per star.…”
Section: Binary Properties As a Function Of Rv Variabilitymentioning
confidence: 99%
“…An advantage conferred by the APOGEE survey is that multi-epoch data were obtained, and RVs from these multiple epochs enable studies of stellar and substellar multiplicity (Troup et al 2016;Badenes et al 2018;Lewis et al 2022). 15 When a sufficient number of epochs are available for a particular star, it is possible to derive or constrain orbital parameters (e.g., Price-Whelan et al 2020; see below); however, this only applies to a minority fraction of APOGEE targets, since the more typical number of APOGEE visits is only three per star.…”
Section: Binary Properties As a Function Of Rv Variability Andmentioning
confidence: 99%