Abstract
We present the results of five years of high precision radial velocity (RV) monitoring of the α Centauri system. Observations were performed with the ESO 1.4m CAT telescope and the Coudé Echelle Spectrometer (CES) on La Silla. From the achieved RV precision we establish the detection threshold for Jovian planets in orbit around α Centauri A & B. Together with the known dynamical limits for stable planetary orbits we can set strong constraints on the presence of giant planets in our neighbouring binary system.
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