Improved spectroscopic parameters for transiting planet hosts

  title={Improved spectroscopic parameters for transiting planet hosts},
  author={Guillermo Torres and Debra A. Fischer and Alessandro Sozzetti and Lars A. Buchhave and Joshua N. Winn and Matthew J. Holman and Joshua Adam Carter},
We report homogeneous spectroscopic determinations of the effective temperature, metallicity, and projected rotational velocity for the host stars of 56 transiting planets. Our analysis is based primarily on the Stellar Parameter Classification (SPC) technique. We investigate systematic errors by examining subsets of the data with two other methods that have often been used in previous studies (SME and MOOG). The SPC and SME results, both based on comparisons between synthetic spectra and… CONTINUE READING