Title of article :
Stellar Parameters for a Sample of Stars with Planets
Author/Authors :
Luan Ghezzi، نويسنده , , Katia Cunha، نويسنده , , Francisco X. de Araujo، نويسنده , , Verne V. Smith، نويسنده , , Ramiro de la Reza and Simon Schuler، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2009
Abstract :
The study of chemical abundances in stars with planets is an important ingredient for the models of formation and evolution of planetary systems. In order to determine accurate abundances, it is crucial to have a reliable set of atmospheric parameters. In this work, we describe the homogeneous determination of effective temperatures, surface gravities and iron abundances for a large sample of stars with planets as well as a control sample of stars without giant planets. Our results indicate that the metallicity distribution of the stars with planets is more metal rich by ~0.13 dex than the control sample stars.
Keywords :
stars: abundances , (stars:) planetary systems: formation , stars: atmospheres
Journal title :
Proceedings of the International Astronomical Union
Journal title :
Proceedings of the International Astronomical Union