Measuring precise radial velocities on individual spectral lines. III. Dependence of stellar activity signal on line formation temperature

K. Al Moulla, X. Dumusque, M. Cretignier +2

Context. To enable radial velocity (RV) precision on the order of ~0.1 m/s required for the detection of Earth-like exoplanets orbiting solar-type stars, the main obstacle lies in…