Galaxy luminosity function in the r-filter. The solid line and the shaded region show the measured luminosity function together with the 99.7% confidence limit (corresponds to 3σ). The dashed line shows the best-fit double power-law fit. Dotted lines show previous approximations by Blanton et al. (2003, EDR), Montero-Dorta & Prada (2009, DR6), and Tempel et al. (2012, DR8). The former two are approximations with Schechter functions. The inset panel shows the relative difference between the best-fit double power-law function and the measured luminosity function. Vertical lines show the magnitude limits for the volume-limited samples.
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