García López, Ramón J.

  Contact Email: rgl@ll.iac.es
Institute: Instituto de Astrofísica de Canarias, Spain
First Coauthor: Nuno Santos
Institute: Observatoire de Geneve, Switzerland
Second Coauthor: Garik Israelian
Institute: Instituto de Astrofísica de Canarias, Spain
Presenting Thesis: Yes Associated with Mr. Nuno Santos
Subject Area: Brown Dwarfs & Extrasolar Planets
Waveband: Optical
Technique: Spectroscopy
Presentation: Poster Display
Title: Beryllium abundances in stars hosting planets
Abstract: Surface chemical abundances are among the most interesting characteristics to compare between stars with and without orbiting planets. In particular, light elements as lithium and beryllium are used as tracers of mixing mechanisms in the stellar interior and can provide very valuable information about the possible interactions between the planets and their parent stars. We have derived beryllium abundances in a wide sample of stars hosting planets, with spectral types in the range F7V-K0V, aimed at studying in detail the effects of planets on the structure and evolution of the associated stars. Predictions from current models are compared with the derived abundances and suggestions are provided to explain the observed inconsistencies. Other researchers participating in this project are: M. Mayor (Obs. Geneve, Switzerland) , M. R. Pérez de Taoro (IAC, Spain), S. Randich (Obs. Arcetri, Italy), A. García Gil (IAC, Spain), and R. Rebolo (IAC, Spain).