%T Asymmetric gravity-capillary solitary waves on deep water %L discovery1477288 %A Z Wang %A J-M Vanden-Broeck %A PA Milewski %V 759 %J Journal of Fluid Mechanics %O Copyright © 2014 Cambridge University Press. %D 2014 %X We present new families of gravity–capillary solitary waves propagating on the surface of a two-dimensional deep fluid. These spatially localised travelling-wave solutions are non-symmetric in the wave propagation direction. Our computation reveals that these waves appear from a spontaneous symmetry-breaking bifurcation, and connect two branches of multi-packet symmetric solitary waves. The speed–energy bifurcation curve of asymmetric solitary waves features a zigzag behaviour with one or more turning points. %K capillary waves, solitary waves, surface gravity waves