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

Free access article

Issue		Astron. Astrophys. Suppl. Ser. Volume 145, Number 1, July 2000


Page(s)		111 - 120
DOI		http://dx.doi.org/10.1051/aas:2000233

DOI: 10.1051/aas:2000233

Astron. Astrophys. Suppl. Ser. 145, 111-120

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

M. Volonteri² - P. Saracco¹ - G. Chincarini^1,2

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

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

Received March 17; accepted May 2, 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 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 5 $\sigma$ 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.

Key words: cosmology: observations -- galaxies: photometry, catalogs general

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