doi:10.1051/0004-6361/201935577engSmirnova-Pinchukova, I.Husemann, B.Busch, G.Appleton, P.Bethermin, M.Combes, F.Croom, S.Davis, T.A.Fischer, C.Gaspari, M.Groves, B.Klein, R.O''Dea, C.P.Perez-Torres, M.Scharwachter, J.Singha, M.Tremblay, G.R.Urrutia, T.The Close AGN Reference Survey (CARS) Discovery of a global [C II] 158 mu m line excess in AGN HE 1353-1917ART-2019-112657The [C II]lambda 158 mu m line is one of the strongest far-infrared (FIR) lines and an important coolant in the interstellar medium of galaxies that is accessible out to high redshifts. The excitation of [C II] is complex and can best be studied in detail at low redshifts. Here we report the discovery of the highest global [C II] excess with respect to the FIR luminosity in the nearby AGN host galaxy HE 1353-1917. This galaxy is exceptional among a sample of five targets because the AGN ionization cone and radio jet directly intercept the cold galactic disk. As a consequence, a massive multiphase gas outflow on kiloparsec scales is embedded in an extended narrow-line region. Because HE 1353-1917 is distinguished by these special properties from our four bright AGN, we propose that a global [C II] excess in AGN host galaxies could be a direct signature of a multiphase AGN-driven outflow with a high mass-loading factor.2019http://zaguan.unizar.es/record/7975110.1051/0004-6361/201935577http://zaguan.unizar.es/record/79751oai:zaguan.unizar.es:79751Astronomy & astrophysics 626 (2019), L3 [7 pp]byhttp://creativecommons.org/licenses/by/3.0/es/info:eu-repo/semantics/openAccess