AAS 196th Meeting, June 2000
Session 56. Evolution of Galaxies Using Large Multicolor Samples
Special Session Oral, Thursday, June 8, 2000, 10:00-11:30am, Highland A/K

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[56.03] Application of CNOC2-Calibrated Photometric Redshifts to Measuring Galaxy Evolution

H. Lin (Steward), M. Sawicki (Caltech), H.K.C. Yee, P.B. Hall (Toronto)

Using the NOAO Mosaic CCD camera, we have carried out BVRI imaging of 6 sq. degrees in and around the CNOC2 Field Galaxy Redshift Survey, in order to obtain a well-calibrated photometric-redshift sample of some 40000 R < 21.5 galaxies. We will describe our photometric redshift techniques, which are tested in detail using an extensive set of 2000 CNOC2 spectroscopic-redshift calibrators. We will also describe our luminosity function (LF) estimation methods, which are used to recover unbiased estimates of LF parameters in the presence of photometric-redshift errors. Finally, we will present results on using our photometric-redshift sample to constrain galaxy evolution, specifically the measurement of luminosity and density evolution rates for the LFs of different galaxy populations at intermediate redshifts z < 1.


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