Resumen: The [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. Idioma: Inglés DOI: 10.1051/0004-6361/201935577 Año: 2019 Publicado en: Astronomy & astrophysics 626 (2019), L3 [7 pp] ISSN: 0004-6361 Factor impacto JCR: 5.636 (2019) Categ. JCR: ASTRONOMY & ASTROPHYSICS rank: 11 / 68 = 0.162 (2019) - Q1 - T1 Factor impacto SCIMAGO: 2.174 - Space and Planetary Science (Q1) - Astronomy and Astrophysics (Q1)