S/N recovered by our pipeline for a suite of injected reflected light models at K_p = 133 km s⁻¹ and Δv= 0 km s⁻¹, as a functionof geometric albedo (A_g) and planet radius (R_p), for models with (left) and without (right) rotational broadening. The white and grey contours are above the threshold for detection, while blue regions cover statistically viable scenarios for 51 Pegasi b, given the upper limits on the F_p ∕F_⋆ contrast that we derive in Sect. 5.4. The black dashed contours mark out the F_p ∕F_⋆ contrast values. The red dashed lines mark the A_g = 0.5 and R_p= 1.9R_J parameters proposed by M15 for 51 Pegasi b. The blue to grey colour scale is not evenly spaced, but increases in increments of 2 up to S∕N ≤ 10, in increments of 4 when 10 < S∕N ≤ 40 and in increments of 8 when S∕N > 40. The colour bars begin at −1 because the S/N value where no model is injected is less than zero for the cases with and without broadening. The colour scale is the same for both plots.