A catalogue of galaxies in the HDF-South: Photometry and structural parameters

Abstract

We describe the construction of a catalogue of galaxies in the optical field of the Hubble Deep Field South. The HDF-S observations produced WFPC2 images in U, B, V, and I, the version 1 data have been made public on 23 November 1999. The effective field of view is 4.38 arcmin², and the 5sigma limiting magnitudes (in a FWHM aperture) are 28.87, 29.71, 30.19, 29.58 in the U, B, V and I bands, respectively. We created a catalogue for each pass-band (I₈₁₄, V₆₀₆, B₄₅₀, U₃₀₀), using simulations to account for incompleteness and spurious sources contamination. Along with photometry in all bands, we determined on the I₈₁₄-selected catalogue (I₈₁₄<26) structural parameters, such as a metric apparent size, derived from the petrosian radius, an asymmetry index, light concentration indexes and the mean surface brightness within the petrosian radius. The full catalogue is 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/Abstract.html