Fig. 9
The shot-noise (dashed line) and sample-variance errors (29) for the angular number densities in the redshift bin 0.95 < z < 1.05, as a function of the radius θs of the angular window. The solid line is the exact sample variance, from Eqs. (38) and (41), while the dotted line is the result (27), which was used in Fig. 5 and involves both the flat-sky and Limber’s approximations.
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