Asteroseismic parameters of RGB stars Virtual Observatory Resource

Authors
  1. Grunblatt S.K.
  2. Huber D.
  3. Gaidos E.
  4. Hon M.
  5. Zinn J.C.
  6. Stello D.
  7. Published by
    CDS
Abstract

Every Sun-like star will eventually evolve into a red giant, a transition which can profoundly affect the evolution of a surrounding planetary system. The timescale of dynamical planet evolution and orbital decay has important implications for planetary habitability, as well as post-main-sequence star and planet interaction, evolution, and internal structure. Here, we investigate these effects by estimating planet occurrence around 2476 low-luminosity red giant branch (LLRGB) stars observed by the NASA K2 mission. We measure stellar masses and radii using asteroseismology, with median random uncertainties of 3.7% in mass and 2.2% in radius. We compare this planet population to the known population of planets around dwarf Sun-like stars, accounting for detection efficiency differences between the stellar populations. We find that 0.49%+/-0.28% of LLRGB stars host planets larger than Jupiter with orbital periods less than 10 days, tentatively higher than main-sequence stars hosting similar planets (0.15%+/-0.06%). Our results suggest that the effects of stellar evolution on the occurrence of close-in planets larger than Jupiter are not significant until stars have begun ascending substantially up the red giant branch (>~5-6 R_{sun}_).

Keywords
  1. Giant stars
  2. Asteroseismology
  3. Stellar radii
  4. Stellar masses
  5. Effective temperature
  6. Metallicity
  7. Apparent magnitude
  8. Stellar distance
  9. Exoplanets
Bibliographic source Bibcode
2019AJ....158..227G
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/158/227
IVOA Identifier IVOID
ivo://CDS.VizieR/J/AJ/158/227
Document Object Identifer DOI
doi:10.26093/cds/vizier.51580227

Access

Web browser access HTML
http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/158/227
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/158/227
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/158/227
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/AJ/158/227/table1?
https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/158/227/table1?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/158/227/table1?

History

2020-01-29T06:39:51Z
Resource record created
2020-01-29T06:39:51Z
Created
2021-08-11T10:36:40Z
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