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

¹ Dipartimento di Fisica, Univ. di Milano, Italy
² Osservatorio Astronomico di Brera-Merate, Italy

Send offprint request to: M. Volonteri, e-mail: marta@merate.mi.astro.it

Received: 17 March 2000
Accepted: 2 May 2000

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 , 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 5σ limiting magnitudes (in a FWHM aperture) are 28.87, 29.71, 30.19, 29.58 in the 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 () 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.