Based on observations collected at the European Southern Observatory (ESO), Cerro Paranal, Chile (ESO Nos. 66.A-0546, 66.A-0547 & 74.B-0592).

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Appendices A-C are only available in electronic form at http://www.aanda.org

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... IRAF

IRAF is distributed by the National Optical Astronomy Observatories, which is operated by the Association of Universities for Research in Astronomy, Inc., under cooperative agreement with the National Science Foundation.

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