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The Close AGN Reference Survey (CARS): Discovery of a global [C ii] 158mm line excess in AGN HE 1353

Smirnova-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., Pérez-Torres, M., Scharwächter, J., Singha, M., Tremblay, G. R. and Urrutia, T. 2019. The Close AGN Reference Survey (CARS): Discovery of a global [C ii] 158mm line excess in AGN HE 1353. Astronomy and Astrophysics 626 , L3. 10.1051/0004-6361/201935577

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Abstract

The [C II]λ158 μm 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.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Publisher: EDP Sciences
ISSN: 0004-6361
Date of First Compliant Deposit: 16 May 2019
Date of Acceptance: 29 April 2019
Last Modified: 05 Sep 2019 11:00
URI: http://orca.cf.ac.uk/id/eprint/122335

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