Southern extrasolar planets CORALIE survey. XIX Virtual Observatory Resource

Authors
  1. Barbato D.
  2. Segransan D.
  3. Udry S.
  4. Unger N.
  5. Bouchy F.
  6. Lovis C.
  7. Mayor M.,Pepe F.
  8. Queloz D.
  9. Santos N.C.
  10. Delisle J.B.
  11. Figueira P.
  12. Marmier M.,Matthews E.C.
  13. Lo Curto G.
  14. Venturini J.
  15. Chaverot G.
  16. Cretignier M.,Otegi J.F.
  17. Stalport M.
  18. Published by
    CDS
Abstract

A historical planet-search on a sample of 1647 nearby southern main sequence stars has been ongoing since 1998 with the CORALIE spectrograph at La Silla Observatory, with a backup subprogram dedicated to the monitoring of binary stars. We review 25 years of CORALIE measurements and search for Doppler signals consistent with stellar or brown dwarf companions to produce an updated catalog of both known and previously unpublished binary stars in the planet-search sample, assessing the binarity fraction of the stellar population and providing perspective for more precise planet-search in the binary sample. We perform new analysis on the CORALIE planet-search sample radial velocity measurements, searching for stellar companions and obtaining orbital solutions for both known and new binary systems. We perform simultaneous radial velocity and proper motion anomaly fits on the subset of these systems for which Hipparcos and Gaia astrometry measurements are available, obtaining accurate estimates of true mass for the companions. We find 218 stars in the CORALIE sample to have at least one stellar companion, 130 of which are not yet published in the literature and for which we present orbital solutions. The use of proper motion anomaly allow us to derive true masses for the stellar companions in 132 systems, which we additionally use to estimate stability regions for possible planetary companions on circumprimary or circumbinary orbits. Finally, we produce detection limit maps for each star in the sample and obtain occurrence rates of 0.43^+0.23^_-0.11_% and 12.69^+0.87^_-0.77_% for brown dwarf and stellar companions respectively in the CORALIE sample.

Keywords
  1. multiple-stars
  2. exoplanets
  3. brown-dwarfs
  4. radial-velocity
Bibliographic source Bibcode
2023A&A...674A.114B
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/674/A114
IVOA Identifier IVOID
ivo://CDS.VizieR/J/A+A/674/A114
Document Object Identifer DOI
doi:10.26093/cds/vizier.36740114

Access

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History

2023-06-16T14:01:25Z
Resource record created
2023-06-16T14:01:25Z
Created
2024-01-09T12:33:10Z
Updated

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