Astron. Astrophys. Suppl. Ser.
Volume 128, Number 2, March I 1998
|Page(s)||299 - 308|
|Published online||15 March 1998|
Centre de Recherches Astronomique de Lyon, CNRS, Observatoire de Lyon, F-69561 St-Genis-Laval Cedex, France
Send offprint request to: Ph. Prugniel
Accepted: 21 July 1997
We present a catalogue of aperture photometry of galaxies, in UBVRI, assembled from three different origins: (i) an update of the catalogue of Buta et al. (1995) (ii) published photometric profiles and (iii) aperture photometry performed on CCD images. We explored different sets of growth curves to fit these data: (i) The Sérsic law, (ii) The net of growth curves used for the preparation of the RC3 and (iii) A linear interpolation between the de Vaucouleurs () and exponential laws. Finally we adopted the latter solution. Fitting these growth curves, we derive (1) the total magnitude, (2) the effective radius, (3) the colour indices and (4) gradients and (5) the photometric type of 5169 galaxies. The photometric type is defined to statistically match the revised morphologic type and parametrizes the shape of the growth curve. It is coded from -9, for very concentrated galaxies, to +10, for diffuse galaxies.
Key words: galaxies: fundamental parameters / galaxies: general / galaxies: photometry
Tables 1 to 4 are presented in electronic form only, and are available at the CDS via anonymous ftp to cdsarc.u-strasbg.fr (18.104.22.168) or via http://cdsweb.u-strasbg.fr/Abstract.html
© European Southern Observatory (ESO), 1998