Sub-m s${}^{-1}$ upper limits from a deep HARPS-N radial-velocity search for planets orbiting HD 166620 and HD 144579

Ancy Anna John, Andrew Collier Cameron, João P. Faria +3

Minimising the impact of stellar variability in Radial Velocity (RV) measurements is a critical challenge in achieving the 10 cm s${}^{-1}$ precision needed to hunt for Earth twins.…