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Luminosity function from dedicated SDSS-III and MMT data of quasars in 0.7 <<i>z</i>< 4.0 selected with a new approach
We present a measurement of the quasar luminosity function in the range 0.68 < z < 4 down to extinction corrected magnitude gdered = 22.5, using a simple and well understood target selection technique based on the time-variability of quasars. The completeness of our sample was derived directly from a …