Name/Affiliation: Claire Moutou (CFHT)
Spectropolarimetry of planet-host stars
The stellar magnetic field plays a critical role in shaping the initial phases of planet formation, influencing the physical properties of close-in planets, and complexifying the conditions for habitability. In this work, we address these issues by characterizing the magnetic properties of planet-host stars by means of spectropolarimetry. The objective is to investigate magnetic properties of bright stars with close-in planets first. Data obtained using the optical instruments ESPaDOnS and NARVAL will be discussed -detection space, first characterized stars, comparison to stars without planets-, and prospects with the future nIR spectropolarimeter SPIRou at CFHT will be presented.