A planetary-mass companion to a solar-type star Virtual Observatory Resource

Authors
  1. Bohn A.J.
  2. Kenworthy M.A.
  3. Ginski C.
  4. Manara C.F.
  5. Pecaut M.J.
  6. de Boer J.,Keller C.U.
  7. Mamajek E.E.
  8. Meshkat T.
  9. Reggiani M.
  10. Todorov K.O.
  11. Snik F.
  12. Published by
    CDS
Abstract

The Young Suns Exoplanet Survey (YSES) consists of a homogeneous sample of 70 young, solar-mass stars located in the Lower Centaurus-Crux subgroup of the Scorpius-Centaurus association with an average age of 15+/-3Myr. We report the detection of a co-moving companion around the K3IV star TYC 8998-760-1 (2MASSJ13251211-6456207) that is located at a distance of 94.6+/-0.3pc using SPHERE/IRDIS on the VLT. Spectroscopic observations with VLT/X-SHOOTER constrain the mass of the star to 1.00+/-0.02M_{sun}_ and an age of 16.7+/-1.4Myr. The companion TYC 8998-760-1 b is detected at a projected separation of 1.71arcsec, which implies a projected physical separation of 162au. Photometric measurements ranging from Y to M band provide a mass estimate of 14+/-3M_Jup_ by comparison to BT-Settl and AMES-dusty isochrones, corresponding to a mass ratio of q=0.013+/-0.003 with respect to the primary. We rule out additional companions to TYC 8998-760-1 that are more massive than 12M_Jup_ and farther than 12au away from the host. Future polarimetric and spectroscopic observations of this system with ground and space based observatories will facilitate testing of formation and evolution scenarios shaping the architecture of the circumstellar environment around this 'young Sun'.

Keywords
  1. pre-main-sequence-stars
  2. k-stars
  3. exoplanets
  4. hertzsprung-russell-diagram
Bibliographic source Bibcode
2020MNRAS.492..431B
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/492/431
IVOA Identifier IVOID
ivo://CDS.VizieR/J/MNRAS/492/431
Document Object Identifer DOI
doi:10.26093/cds/vizier.74920431

Access

Web browser access HTML
http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/492/431
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/492/431
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/492/431
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/492/431/list?
https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/492/431/list?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/492/431/list?
Web browser access HTML
https://cdsarc.cds.unistra.fr/assocdata/?obs_collection=J/MNRAS/492/431

History

2020-02-13T07:34:55Z
Resource record created
2020-02-13T07:34:55Z
Created
2024-08-20T20:15:45Z
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