Binaries in the APOGEE-Gaia Binary Catalog Virtual Observatory Resource

Authors
  1. Lewis H.M.
  2. Anguiano B.
  3. Majewski S.R.
  4. Nidever D.L.
  5. Badenes C.,De Lee N.
  6. Hasselquist S.
  7. Mazzola Daher C.
  8. Stassun K.G.
  9. Bizyaev D.,Godoy-Rivera D.
  10. Nitschelm C.
  11. Oravetz A.
  12. Pan K.
  13. Roman-Lopes A.
  14. Published by
    CDS
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 catalogue 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 companions in these multiple systems using (1) the Gaia binary main sequence and (2) observed periodic radial velocity variations in APOGEE measurements due to the influence of a close substellar-mass companion. The studied wide binary pairs reveal a total of four stellar-mass close companions in four different wide binaries, and four substellar-mass close companion candidates in two wide binaries. The latter are therefore quadruple systems, with one substellar-mass companion orbiting each wide binary component in an S-type orbit. Taken at face value, these candidate systems represent an enhancement of an order of magnitude over the expected occurrence rate of ~2 per cent of stars having substellar companions > 2 M_Jup_ within ~100-d orbits; we discuss implications and possible explanations for this result. Finally, we compare chemical differences between the components of the wide binaries and the components of the candidate higher-order systems and find that any chemical influence or correlation due to the presence of close companions to wide binary stars is not discernible.

Keywords
  1. milky-way-galaxy
  2. multiple-stars
  3. spectroscopic-binary-stars
  4. white-dwarf-stars
  5. photometry
  6. visible-astronomy
  7. infrared-astronomy
  8. radial-velocity
  9. astrometry
  10. effective-temperature
  11. chemical-abundances
  12. stellar-masses
Bibliographic source Bibcode
2022MNRAS.509.3355L
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/509/3355
IVOA Identifier IVOID
ivo://CDS.VizieR/J/MNRAS/509/3355

Access

Web browser access HTML
http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/509/3355
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/509/3355
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/509/3355
IVOA Table Access TAP
http://tapvizier.cds.unistra.fr/TAPVizieR/tap
Run SQL-like queries with TAP-enabled clients (e.g., TOPCAT).
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
http://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/509/3355/table5?
https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/509/3355/table5?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/509/3355/table5?

History

2024-10-11T15:27:08Z
Resource record created
2024-10-11T14:36:23Z
Updated
2024-10-11T15:27:08Z
Created

Contact

Name
CDS support team
Postal Address
CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France
E-Mail
cds-question@unistra.fr