Sun-like stars abundances Virtual Observatory Resource

Authors
  1. Spina L.
  2. Sharma P.
  3. Melendez J.
  4. Bedell M.
  5. Casey A.R.
  6. Carlos M.,Franciosini E.
  7. Vallenari A.
  8. Published by
    CDS
Abstract

Stellar members of binary systems are formed from the same material, and therefore they should be chemically identical. However, recent studies have unveiled chemical differences between the two members of binary pairs composed of Sun-like stars. These chemically inhomogeneous binaries represent one of the most contradictory examples in stellar astrophysics and a source of tension between theory and observations. It is still unclear whether the abundance variations are the result of inhomogeneities in the protostellar gas clouds or are due to planet engulfment events that occurred after the stellar formation. The former scenario undermines the general belief that the chemical makeup of stars provides the fossil information of the environment in which they formed, whereas the second scenario would shed light on the possible evolutionary paths of planetary systems. Our study provides compelling evidence in favour of the planet engulfment scenario. We also establish that planet engulfment events occur in Sun-like stars with a 20-35% probability. Therefore, an important fraction of planetary systems undergo very dynamical evolutionary paths that critically modify their architectures, unlike our calm Solar System. This study opens the possibility of using chemical abundances of stars to identify which ones are the most likely to host Solar System analogues.

Keywords
  1. G stars
  2. Chemical abundances
  3. Optical astronomy
Bibliographic source Bibcode
2021NatAs...5.1163S
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/other/NatAs/5.1163
IVOA Identifier IVOID
ivo://CDS.VizieR/J/other/NatAs/5.1163

Access

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http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/other/NatAs/5.1163
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/other/NatAs/5.1163
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/other/NatAs/5.1163
IVOA Table Access TAP
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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/other/NatAs/5.1163/tabled1?
https://vizier.iucaa.in/viz-bin/conesearch/J/other/NatAs/5.1163/tabled1?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/other/NatAs/5.1163/tabled1?
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
http://vizier.cds.unistra.fr/viz-bin/conesearch/J/other/NatAs/5.1163/tabled2?
https://vizier.iucaa.in/viz-bin/conesearch/J/other/NatAs/5.1163/tabled2?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/other/NatAs/5.1163/tabled2?
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
http://vizier.cds.unistra.fr/viz-bin/conesearch/J/other/NatAs/5.1163/tabled3?
https://vizier.iucaa.in/viz-bin/conesearch/J/other/NatAs/5.1163/tabled3?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/other/NatAs/5.1163/tabled3?
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
http://vizier.cds.unistra.fr/viz-bin/conesearch/J/other/NatAs/5.1163/tabled4?
https://vizier.iucaa.in/viz-bin/conesearch/J/other/NatAs/5.1163/tabled4?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/other/NatAs/5.1163/tabled4?

History

2023-08-30T17:15:59Z
Resource record created
2023-08-30T17:15:59Z
Created
2023-08-31T07:14:55Z
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