The Close AGN Reference Survey (CARS): Discovery of a global [C II] 158 μm line excess in AGN HE 1353-1917

Journal
Date Issued
2019
Author(s)
Smirnova-Pinchukova, I.
•
Husemann, B.
•
Busch, G.
•
Appleton, P.
•
Bethermin, M.
•
Combes, F.
•
Croom, S.
•
Davis, T. A.
•
Fischer, C.
•
•
Groves, B.
•
Klein, R.
•
O'Dea, C. P.
•
Pérez-Torres, M.
•
Scharwächter, J.
•
Singha, M.
•
Tremblay, G. R.
•
Urrutia, T.
DOI
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.
Volume
626
Start page
L3
Uri
Url
Issn Identifier
0004-6361
Ads BibCode
2019A&A...626L...3S
Rights
open.access
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