Two-dimensional marginalized posterior likelihood contours for f and σ8 at 0.5 <z < 0.7, showing the impact of the additional galaxy-galaxy lensing constraint on the f−σ8 degeneracy. The black curve shows the region of constant fσ8 associated with Planck Collaboration XIII (2016)ΛCDM + GR best-fit, while the combined (f,σ8) constraint is marked with the star.
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