Result of the exploration of the parameter space for four (a₀,i₀) combinations. a) a₀ = 0.287 AU, i₀ = 75°; b) a₀ = 0.1435 AU, i₀ = 75°; c) a₀ = 0.287 AU, i₀ = 85°; d) a₀ = 0.574 AU, i₀ = 85°. In each plot, the upper observational limits (radial velocities and imaging) are represented as a solid line; the oblique dotted line corresponds to the limit t_GR = t_Kozai as given by Matsumura et al. (2009). In the upper left plot, the dashed lined are m′ ∝ T′ − 1/3 and m′ ∝ T′² power laws (see text).