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Joint analysis of cluster number counts and weak lensing power spectrum to correct for the super-sample covariance
A coherent over- or under-density contrast across a finite survey volume causes an upward- or downward fluctuation in the observed number of haloes. This fluctuation in halo number adds a significant co-variant scatter in the observed amplitudes of weak lensing power spectrum at non-linear, small scales – the so-called super-sample …