Structure and kinematics of the peculiar galaxy NGC 128

This is a multiband photometric and spectro- scopic study of the peculiar S0 galaxy NGC 128. We present results from broad (B and R) and narrow (H) band optical CCD photometry, near (NIR) and far (FIR) infrared observations, long slit spectroscopy, and Fabry- Perot interferometry (CIGALE). The peculiar peanut shape morphology of the galaxy is observed both at optical and near-infrared wavelengths. The stellar disk is thick and distorted (arc-bended), with a color asymmetry along the major axis due to the presence of a large amount of dust, estimated through NIR and FIR data of 61 0 6 M, in the region of interaction with the companion galaxy NGC 127. The color maps are nearly uniform over the whole galaxy, but for the major axis asymmetry, and a small gradient toward the center indicating the presence of a redder disk-like component. The H image indeed reveals the existence of a tilted gaseous \disk" around the cen- ter, oriented with the major axis toward the companion galaxy NGC 127. Long slit and CIGALE data conrm the presence of gas in a disk-like component counter-rotating and inclined approximately of 50 to the line of sight. The mass of the gas disk in the inner region is 2: 71 0 4 M. The stellar velocity eld is cylindrical up to the last measured points of the derived rotation curves, while the velocity dispersion proles are typical for an S0 galaxy, but for an extended constant behaviour along the minor axis.