Our kinematical observations were secured at the 1.93-m telescope of the Observatoire de Haute-Provence, equipped with the CARELEC long-slit spectrograph. The camera aperture ratio was f/2.6, and the receptor was a Tektronix with pixels of 27 m, corresponding to a projected size of 1.2''. The selected setup provided either: a) a wavelength range of 900 Å centered on Mg b, with a dispersion of 1.8 Å per pixel (corresponding to 104 km s-1), or b) a range of 450 Å with a dispersion of 0.9 Å per pixel (52 km s-1). The slit width, projected onto the plane of the sky, was 2.2''.
In May and November 1992, January and February 1993, a total of 14 nights of observation allowed us to collect data on the major axis of 34 galaxies. Table 2 (in electronic form only) presents the log of the observations. Typically, two 45- or 60-minutes exposures were obtained for each object; these exposure times were short enough to prevent the widening of the spectral lines due to flexures within the spectrograph, yet long enough to allow the measurement of kinematical parameters down to surface brightnesses of 21 mag arcsec-2, with an accuracy for the velocity dispersion of less than 30 km s-1 for most objects. For NGC 2903, NGC 3675, NGC 5055, and NGC 7331, spectra along the minor axis were also obtained. Each night, several template stars of types ranging between G8III and K2III were observed.
The atmospheric conditions were variable, with a seeing disk between 2'' and 3'' (FWHM) for most objects. Care has been taken to match the seeing conditions of the galaxy and star spectra, in order to ensure comparable spectroscopic resolutions.
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