Observations with SDSS telescope based on the SCUSS photometry. Top row, left panel: color selection applied to the SDSS + SCUSS photometry. Right panel: RA, Dec in degree (J2000). All the 20 <u< 23 objects (green) and the spectroscopic targets (red). Bottom: observed redshift distributions per square degree per Δz = 0.1 High priority ELG (red) are at slighter higher redshift than the low priority ELG (blue). This selection based on a shallower photometry than the CFHT-LS is not as efficient at selecting redshift 0.8 ELGs.
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