Keskeiset käsitteet
Stellar chemical compositions can be altered by the ingestion of planetary material, providing evidence of planet signatures and deepening our understanding of the star-planet-chemistry connection.
Tiivistelmä
Introduction:
Stellar chemical compositions can change due to planetary ingestion or planet formation.
Detecting planet signatures is challenging due to various factors like occurrence rates and heterogeneous star samples.
Methodology:
Gaia satellite offers opportunities for detecting stellar chemical signatures among co-natal pairs of stars.
High-precision chemical abundances were reported for ninety-one co-natal pairs, revealing instances of planetary ingestion.
Findings:
Seven instances of planetary ingestion were identified, with an occurrence rate of eight percent.
An independent Bayesian indicator helped distinguish planet signatures from other factors.
Conclusion:
The study provides evidence of planet signatures and enhances our understanding of the mechanisms behind planet engulfment, formation, and evolution.
Tilastot
An occurrence rate of eight percent was identified for planetary ingestion.