55 Cnc b discovery paper: "Three New 51 Pegasi--Type Planets"
R.P. Butler, G.W. Marcy, E. Williams, H. Hauser, P. Shirts, 1997, ApJ 474, L115 -- ADS

System discovery paper: "A Planet at 5 AU around 55 Cancri"
G.W. Marcy, R.P. Butler, D.A. Fischer, G. Laughlin, S.S. Vogt, G.W. Henry, D. Pourbaix, 2002, ApJ 581, 1375 -- ADS

Confirmation paper:"The ELODIE survey for northern extra-solar planets III: Three planetary candidates detected with ELODIE"
D. Naef, M. Mayor, J.L. Beuzit, C. Perrier, D. Queloz, J.P. Sivan, S. Udry, 2004, A&A 414, 351--ADS

Remark: The signal induced by the intermediate planet is only marginally present in our data. It is too small to allow us to constrain the orbital parameters of 55 Cnc c

a: Phase-folded velocities for 55 Cnc b
(signal from the outer planet removed).
b: Phase-folded velocities for 55 Cnc d
(signals induced by 55 Cnc b removed).
c: Residuals around the solution.
Larger image (36 kb)