Consequences of spectrograph illumination for the accuracy of radial-velocimetry I. Boisse, F. Bouchy, B. Chazelas, S. Perruchot, F. Pepe, C. Lovis and G. Hébrard EPJ Web of Conferences, 16 (2011) 02003 Published online: 18 July 2011 DOI: 10.1051/epjconf/20111602003