Based on observations carried out at the European Southern Observatory, Paranal, Chile, programmes P63.O-0477(A&D), P65.O-0324(B), and P66.A-0597(B&D).

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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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... DIMSUM

DIMSUM is a set of scripts to reduce dithered images contributed to IRAF and written by P. Eisenhardt, M. Dickinson, A. Stanford, J. Ward and F. Valdes.

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... higher

There is an error in Sect. 2.2 of Kennicutt (1998): the ${\it SFR}/L_\nu$ ratio will be significantly higher in younger populations (Kennicutt, private communication).

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... values

Note that the narrow band filter was designed for the cone angle of FORS1 and its transmission was measured within the instrument. The measured deviation of the mean redshift can therefore not be due to the dependence of interference filter specifications on the incident beam.

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