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Morphological disturbances and gas kinematics of the SB0 galaxy NGC 7679=Arp216 are investigated to get clues to the history of this highly compositeobject, where AGN and starburst signatures dominate each other in the X-ray andoptical/IR regime, respectively. Perturbations of the ionized gas velocityfield appear quite mild within 15'' (~5 kpc) from the center, so as it can bestraightforwardly modeled as a circularly rotating disk. On the contrary,outside that radius, significant disturbances show up. In particular, theeastern distorted arm as well as the huge neutral hydrogen bridge connectingNGC 7679 with the nearby Seyfert spiral NGC 7682 unambiguously represent thevestige of a close encounter of the two objects dating back ~500 Myr ago. Therelationship of such past event with the much more recent, centrally locatedstarburst (not older than 20 Myr) cannot be easily established. Altogether, theclassification of NGC 7679, turns out to be less extreme than that proposed inthe past, being simply a (disturbed) galaxy where starburst and AGN activitycohexist with a starburst dominating the bolometric luminosity.Comment: 11 pages, 9 figures, accepted for publication in Astronomy and  Astrophysic

NGC 7679: an anomalous, composite Seyfert 1 galaxy whose X-ray luminous AGN vanishes at optical wavelengths