Poster Abstracts

Name/Affiliation:  Victor Silva Aguirre (Aarhus University, Denmark)

Title:  Precise properties of exoplanet host-stars from asteroseismology

The Kepler mission has detected thousands of exoplanet candidates orbiting various types of stars. Validation as well as characterization of these planet candidates depend critically on our knowledge of the host star properties, which are often poorly constrained. Asteroseismology has been extremely successful in providing accurate masses and radii of Kepler targets, helping in better determining occurrence rates and sizes of planets. In this talk, I present the results of an ongoing programme whose objective is to derive robust and precise stellar properties, including ages, for a large sample of G-type asteroseismic targets. Having ages for an ensemble of planetary host stars will allow us to comment on theory of planet formation. I discuss the results in the context of characteristics of main-sequence exoplanets host-stars, as well as temporal constraints of processes such as evolution of eccentricity, orbital synchronization and circularization, efficiency of resonances, and obliquities.