SOAR TESS survey. II. Impact of stellar companions Virtual Observatory Resource

Authors
  1. Ziegler C.
  2. Tokovinin A.
  3. Latiolais M.
  4. Briceno C.
  5. Law N.
  6. Mann A.W.
  7. Published by
    CDS
Abstract

We present the results of the second year of exoplanet candidate host speckle observations from the SOAR TESS survey. We find 89 of the 589 newly observed TESS planet candidate hosts have companions within 3", resulting in light-curve dilution, that, if not accounted for, leads to underestimated planetary radii. We combined these observations with those from PaperI to search for evidence of the impact binary stars have on planetary systems. Removing the one-quarter of the targets observed identified as false-positive planet detections, we find that transiting planets are suppressed by nearly a factor of seven in close solar-type binaries, nearly twice the suppression previously reported. The result on planet occurrence rates that are based on magnitude-limited surveys is an overestimation by a factor of two if binary suppression is not taken into account. We also find tentative evidence for similar close binary suppression of planets in M-dwarf systems. Last, we find that the high rates of widely separated companions to hot Jupiter hosts previously reported was likely a result of false-positive contamination in our sample.

Keywords
  1. multiple-stars
  2. exoplanets
  3. interferometry
  4. infrared-astronomy
  5. astrometry
  6. effective-temperature
Bibliographic source Bibcode
2021AJ....162..192Z
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/162/192
IVOA Identifier IVOID
ivo://CDS.VizieR/J/AJ/162/192
Document Object Identifer DOI
doi:10.26093/cds/vizier.51620192

Access

Web browser access HTML
https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/162/192
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/162/192
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/162/192
IVOA Table Access TAP
https://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).
https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/162/192/table1?
https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/162/192/table1?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/162/192/table1?
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/162/192/table2?
https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/162/192/table2?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/162/192/table2?

History

2022-01-10T07:01:49Z
Resource record created
2022-01-10T07:01:49Z
Created
2022-03-14T06:53:02Z
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