Fig. 5
Galaxy luminosity function of the Ophiuchus cluster in the entire MegaCam field. The black line and points are the data, the green curve is the Gaussian component, the blue curve is the Schechter function, and the red curve is the total of the two components. Top: constant galactic extinctioncorrection of 1.357, bottom: individual galactic extinction correction. Left: subtraction of Yasuda background counts, and right: subtraction of Yasuda background counts multiplied by f = 0.7 (see Sect. 3.1).
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