KOI planets and KIC stars from Kepler DR25 Virtual Observatory Resource

Authors
  1. Bashi D.
  2. Zucker S.
  3. Published by
    CDS
Abstract

In order to gain a better understanding of planet formation and evolution, it is important to examine the statistics of exoplanets in the Galactic context. By combining information on stellar elemental abundances and kinematics, we constructed separate samples of Kepler stars according to their affiliation to the Galactic components of thin disc, thick disc, and stellar halo. Using a Bayesian analysis with conjugate priors, we then investigated how planet occurrence rates differ in different regions of planet properties. We find that young, slow, and metal-rich stars, associated mainly with the thin disc, host on average more planets (especially close-in super Earths) compared to the old, fast, and metal-poor thick disc stars. We further assess the dependence between stellar properties such as spectral type and metallicity, and planet occurrence rates. The trends we find agree with those found by other authors as well. We argue that in the Galactic context, these are probably not the main properties that affect planet occurrence rates, but rather the dynamical history of stars, and especially stellar age and kinematics, impact the current distribution of planets in the Galaxy.

Keywords
  1. milky-way-galaxy
  2. galaxy-planes
  3. dwarf-stars
  4. f-stars
  5. exoplanets
  6. astrometry
  7. stellar-radii
  8. effective-temperature
  9. metallicity
  10. stellar-populations
Bibliographic source Bibcode
2022MNRAS.510.3449B
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/510/3449
IVOA Identifier IVOID
ivo://CDS.VizieR/J/MNRAS/510/3449
Document Object Identifer DOI
doi:10.26093/cds/vizier.75103449

Access

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/MNRAS/510/3449/table1?
https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/510/3449/table1?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/510/3449/table1?
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/510/3449/table2?
https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/510/3449/table2?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/510/3449/table2?

History

2025-01-08T10:18:00Z
Resource record created
2025-01-08T10:18:00Z
Created
2025-02-24T20:16:46Z
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