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The aim of this paper is to determinate the fundamental parameters of sixexoplanet host (EH) stars and their planets. While techniques for detectingexoplanets yield properties of the planet only as a function of the propertiesof the host star, hence, we must accurately determine parameters of EH stars atfirst. For this reason, we constructed a grid of stellar models includingdiffusion and rotation-induced extra-mixing with given ranges of inputparameters (i.e. mass, metallicity, and initial rotation rate). In addition tothe commonly used observational constraints such as the effective temperatureT_{eff}, luminosity L and metallicity [Fe/H], we added two observationalconstraints, the lithium abundance log N (Li) and the rotational periodP_{rot}. These two additional observed parameters can make further constrainson the model due to their correlations with mass, age and other stellarproperties. Hence, our estimations of fundamental parameters for these EH starsand their planets are with higher precision than previous works. Therefore, thecombination of rotational period and lithium help us to obtain more accurateparameters for stars, leading to an improvement of the knowledge of thephysical state about the EH stars and their planets.

Precise determination of fundamental parameters of six exoplanet host stars and their planets