2. Observational data and derived integral properties

In order to make valuable comparison with the previous studies, the use of a homogeneous data system is needed.

The increasing number of the available extragalactic H I data made obvious the necessity to produce a homogenized system which may be used for statistical and comparative purposes. A new homogeneous H I data catalogue has been produced (Bottinelli et al. 1990) and its updated version is now a part of the Lyon-Meudon Extragalactic Database (LEDA), described in detail by Paturel et al. (1997). It must be noted that all corrections both for optical and H I data were made following the indications given by Paturel et al. (1997) and Bottinelli et al. (1990, 1995). Consequently, all derived (or taken from LEDA) integral parameters for Kazarian galaxies correspond to this widely accepted data system. For distance estimation the radial velocities reduced to the Local Group have been used (adopting H = 75 km s^-1 ${\rm Mpc}^{-1}$).

A general description of the calculation method and formulae for all derived parameters may be found in Bottinelli et al. (1982).

In Table 1 the observational data for 23 galaxies taken from our previous article and/or LEDA as well as main derived integral parameters are given.