On the origin of stars with and without planets - Tc trends and clues to Galactic evolution

@article{Adibekyan2014OnTO,
  title={On the origin of stars with and without planets - Tc trends and clues to Galactic evolution},
  author={Vardan Adibekyan and J. I. Gonz{\'a}lez Hern{\'a}ndez and Elisa Delgado Mena and S{\'e}rgio G. Sousa and Nuno C. Santos and Garik Israelian and Pedro Figueira and Sara Bertran de Lis},
  journal={Astronomy and Astrophysics},
  year={2014},
  volume={564}
}
We explore a sample of 148 solar-like stars to search for a possible correlation between the slopes of the abundance trends versus condensation temperature (known as the Tc slope) with stellar parameters and Galactic orbital parameters in order to understand the nature of the peculiar chemical signatures of these stars an d the possible connection with planet formation. We find that the Tc slope significantly correlates (at more than 4σ) with the stellar age and the stellar surface gravity. We… 

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