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Goto, T. J. Broadhurst, W. B. Sparks, W. Zheng, Z. I. Tsvetanov","submitted_at":"2004-07-30T16:02:31Z","abstract_excerpt":"We measure the luminosity function of morphologically selected E/S0 galaxies from $z=0.5$ to $z=1.0$ using deep high resolution Advanced Camera for Surveys imaging data. Our analysis covers an area of $48\\Box\\arcmin$ (8$\\times$ the area of the HDF-N) and extends 2 magnitudes deeper ($I\\sim24$ mag) than was possible in the Deep Groth Strip Survey (DGSS). At $0.5<z<0.75$, we find $M_B^*-5\\log h_{0.7}=-21.1\\pm0.3$ and $\\alpha=-0.53\\pm0.2$, and at $0.75<z<1.0$, we find $M_B^*-5\\log h_{0.7}=-21.4\\pm0.2$. 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