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Context: The spatial distribution of the stellar populations inside aspheroidal system and their kinematical properties supply importantinformations about the formation process. Aims: We have performed a detailedstellar population analysis using long slit spectroscopic observations up toalmost one effective radius of two different early-type galaxies of low densityregions of the local Universe: NGC 1052, a E4 Liner prototype of a loose groupthat has a stellar rotating disc, and NGC 7796, a E1 of the field which shows akinematically distinct core. The mean luminosity-weighted stellar age,metallicity, and alpha/Fe ratio along both photometric axes of them have beenobtained in order to reconstruct the star formation history in theirkinematically distinct subsystems. Methods: We have measured Lick indices andcomputed their radial gradients. They were compared with the predicted ones ofsimple stellar population models. We have also applied a stellar populationsynthesis. Results: The star characteristics are associated with theirkinematics: they are older and alpha-enhanced in the bulge of NGC 1052 and coreof NGC 7796, while they show a strong spread of alpha/Fe and age along the discof NGC 1052 and an outwards radial decreasing of them outside the core of NGC7796. The age variation is possibly connected to the alpha/Fe one. Conclusions:Both galaxies were formed by processes in which the star formation occurredfirstly at the bulge (NGC 1052) and nucleus (NGC 7796) 12-15 Gyr ago on shorttimescales (0.1-1 Gyr) providing an efficient chemical enrichment by SN-II. Inthe disc of NGC 1052, there is some spread of age and formation timescalesaround its stars. In NGC 7796, the star formation timescale had some outwardsradial increasing along both axes.Comment: 26 pages, 27 figures, accepted for publication in A&

The elliptical galaxies NGC 1052 and NGC 7796