A catalog of LEDA galaxies with DENIS measurements^*

¹ CRAL - Observatoire de Lyon, 69561 Saint-Genis Laval Cedex, France e-mail: patu@obs.univ-lyon1.fr
² Observatoire de Paris-Meudon, 5, place Jules-Janssen, 92195 Meudon, France
³ LUAN, Université de Nice Sophia-Antipolis, CNRS - UMR 6525, Parc Valrose, Nice, France
⁴ Observatoire Midi-Pyrénées, 14 avenue Edouard-Belin, 31400 Toulouse, France
⁵ Institut d'Astrophysique de Paris, 98B Bd. Arago, 75014 Paris, France

Received: 26 April 2004
Accepted: 17 September 2004

Abstract

We present a catalog of near-infrared properties of LEDA galaxies, using the full resolution images from the DENIS survey. The fluxes are integrated in eight homothetic ellipses defined by their proper axis ratio, position angle and major axis (up to twice the blue diameter at the isophote 25 mag arcsec^-2) extracted from the LEDA database. From the curves of growth in I, J and K_s photometric bands, we estimated different apparent magnitudes and diameters (“total”, “Kron” and “isophotal”). Isophotal parameters refer to the limiting surface brightnesses: 22.5 I mag arcsec^-2, 21.0 J mag arcsec^-2 and 20.0 K_s mag arcsec^-2 for the three photometric bands, respectively. The result is a catalog of  objects (among which there are  galaxies,  probable galaxies and  galaxies to be confirmed). The catalog gives about (the figures vary, depending on the considered magnitude or diameter): I-band magnitudes, J-band magnitudes,  K_s-band magnitudes and I-band diameters, J-band diameters, K_s-band diameters.
The typical standard deviations for I, J and K_s magnitudes are 0.14, 0.15 and 0.25, respectively, for magnitudes limited at , and . The contamination by superimposed objects probably remains the major source of problems and could require future improvement. The completeness limits in magnitude are about: 15.5, 14.5 and 13 in I, J and K_s, respectively.