Based on observations collected at the European Southern Observatory, Chile. Proposal numbers: 67.A-0494(A), 67.A-0495(A) and 70.A-0710.

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Tables A.1-A.5 are only available in electronic form at the CDS via anonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5)or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/430/19

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... IRAF

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

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... offset

As usual cosmologically and relativistically corrected.

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