Events in Physics
Jesus Maldonado: Debris discs and planets around main-sequence
Twenty years after the discovery of the first exoplanets, our knowledge of which stellar properties influence
planet formation is still far away to be complete. Furthermore, most of our current knowledge on planet formation is based on observations of main-sequence stars.
In this contribution I will give an overview of my research work, showing the results of a high-resolution,
optical spectra study of a sample of nearby late-type stars. The observations and analysis (kinematics, age, stellar parameters determination ...) will be described. I will focus on the metallicity distribution of stars with and without known debris discs and/or planetary companions, setting the results in the context of planet formation models. Then, I will present the first results on the analysis of the metallicity and elemental abundances of a large
sample of evolved stars with and without known planetary companions.