The MURALES survey IV. Searching for nuclear outflows in 3C radio galaxies at <i>z</i> &lt; 0.3 with MUSE observations

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dc.contributor.authorSperanza, G.
dc.contributor.authorBalmaverde, B.
dc.contributor.authorCapetti, A.
dc.contributor.authorMassaro, F.
dc.contributor.authorTremblay, G.
dc.contributor.authorMarconi, A.
dc.contributor.authorVenturi, G.
dc.contributor.authorChiaberge, M.
dc.contributor.authorBaldi, R. D.
dc.contributor.authorBaum, S.
dc.contributor.authorGrandi, P.
dc.contributor.authorMeyer, E. T.
dc.contributor.authorO'Dea, C.
dc.contributor.authorSparks, W.
dc.contributor.authorTerrazas, B. A.
dc.contributor.authorTorresi, E.
dc.date.accessioned2025-01-20T22:07:52Z
dc.date.available2025-01-20T22:07:52Z
dc.date.issued2021
dc.description.abstractWe analyze VLT/MUSE observations of 37 radio galaxies from the Third Cambridge catalogue (3C) with redshift < 0.3 searching for nuclear outflows of ionized gas. These observations are part of the MURALES project (a MUse RAdio Loud Emission line Snapshot survey), whose main goal is to explore the feedback process in the most powerful radio-loud AGN. We applied a nonparametric analysis to the [O III] lambda 5007 emission line, whose asymmetries and high-velocity wings reveal signatures of outflows. We find evidence of nuclear outflows in 21 sources, with velocities between similar to 400 and 1000 km s(-1), outflowing masses of similar to 10(5) - 10(7) M-circle dot, and a kinetic energy in the range similar to 10(53) - 10(56) erg. In addition, evidence for extended outflows is found in the 2D gas velocity maps of 13 sources of the subclasses of high-excitation (HEG) and broad-line (BLO) radio galaxies, with sizes between 0.4 and 20 kpc. We estimate a mass outflow rate in the range 0.4-30 M-circle dot yr(-1) and an energy deposition rate of (E)over dot(kin) similar to 10(42) - 10(45) erg s(-1). Comparing the jet power, the nuclear luminosity of the active galactic nucleus, and the outflow kinetic energy rate, we find that outflows of HEGs and BLOs are likely radiatively powered, while jets likely only play a dominant role in galaxies with low excitation. The low loading factors we measured suggest that these outflows are driven by momentum and not by energy. Based on the gas masses, velocities, and energetics involved, we conclude that the observed ionized outflows have a limited effect on the gas content or the star formation in the host. In order to obtain a complete view of the feedback process, observations exploring the complex multiphase structure of outflows are required.
dc.fuente.origenWOS
dc.identifier.doi10.1051/0004-6361/202140686
dc.identifier.eissn1432-0746
dc.identifier.issn0004-6361
dc.identifier.urihttps://doi.org/10.1051/0004-6361/202140686
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/94263
dc.identifier.wosidWOS:000700219900002
dc.language.isoen
dc.revistaAstronomy & astrophysics
dc.rightsacceso restringido
dc.subjectgalaxies: active
dc.subjectgalaxies: nuclei
dc.subjectgalaxies: jets
dc.subjectgalaxies: evolution
dc.titleThe MURALES survey IV. Searching for nuclear outflows in 3C radio galaxies at <i>z</i> &lt; 0.3 with MUSE observations
dc.typeartículo
dc.volumen653
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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