Zoom-in on the comparison of the retrieved parameters in the centers of the two galaxies: NGC3309 (pink) and NGC3311 (green). Excluding the velocity dispersion, metallicity, and IMF, all the other parameters show very good agreement, suggesting that the cores of the two companion galaxies have been formed from the same enriched material and at the same time. Differences in the velocity dispersion and IMF could signify that the IMF trend is connected with the kinematic distribution during galaxy formation.