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Fig. 19.

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Number distribution of galaxies with S/N > 50 in 2D grids of B/T vs. redshift z (top panel) and of B/T vs. the intrinsic size σ (bottom panel), expected from the full 400 deg2 of CSST deep survey. The color bar represents the number of galaxies in unit of 50 and truncated at 200 for clear visibility. In the top panel, the bin size of B/T is 0.015, and that for z is 0.03 for redshifts within the range of [0, 1.5] and 0.15 within (1.5, 3]. In the bottom panel, the galaxies are selected with redshifts within [0.5, 0.6].

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