9 Description of the catalogue

We presented a catalogue of galaxies in the HDF-S, created using the public version 1 images of the WFPC2 data. We created a catalogue for each pass-band (I₈₁₄, V₆₀₆, B₄₅₀, U₃₀₀), which is available upon request. In V₆₀₆, B₄₅₀, U₃₀₀ for each galaxy the catalogue reads:

• isophotal flux and magnitude, with their errors (SExtractor);
• isophotal corrected flux and magnitude, with their errors (SExtractor);
• fixed circular aperture (0.6 arcsec radius) flux and magnitude, with their errors (SExtractor);
• Kron's technique flux and magnitude, with their errors (SExtractor);
• SExtractor best choice for photometry (Kron's or isophotal corrected);
• isophotal area (pix²) (SExtractor);
• coordinates   in  pixels  of  the barycentre, related to version1 frames (SExtractor);
• right ascension and declination (SExtractor);
• second order moments of the light distribution (SExtractor);
• semi-major and semi-minor axis lenghts in pixels (SExtractor);
• flags produced by detection and measurement processes (SExtractor);
• stellar classification (SExtractor);
• signal-to-noise ratio (Sect. 4);
• pseudo-total magnitude and error (Sect. 3).

For the I₈₁₄-selected catalogue besides the above entries, we estimated also the colours (Sect. 7) and for I₈₁₄<26, the petrosian radius (arcsec), the mean surface brightness within the petrosian radius (mag arcsec^-2), light concentration indexes, that is $C_\eta$ and $C_{{\rm abr}}$, and the asymmetry index as computed by Abraham software (Sect. 8). In Table 5 a small part of the catalogue is shown.