Outflowing gas in a compact ionization cone in the Seyfert 2 galaxy ESO 153-G20

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dc.contributor.authorSoto-Pinto, Pamela
dc.contributor.authorNagar, Neil M.
dc.contributor.authorFinlez, Carolina
dc.contributor.authorRamakrishnan, Venkatessh
dc.contributor.authorMunoz-Vergara, Dania
dc.contributor.authorSlater, Roy
dc.contributor.authorHumire, Pedro K.
dc.contributor.authorStorchi-Bergmann, Thaisa
dc.contributor.authorLena, Davide
dc.contributor.authorKraemer, Steven B.
dc.contributor.authorFischer, Travis C.
dc.contributor.authorSchmitt, Henrique R.
dc.contributor.authorRiffel, Rogemar A.
dc.contributor.authorSchnorr-Muller, Allan
dc.contributor.authorRobinson, Andrew
dc.contributor.authorCrenshaw, D. Michael
dc.contributor.authorElvis, Martin S.
dc.date.accessioned2023-07-18T16:32:42Z
dc.date.available2023-07-18T16:32:42Z
dc.date.issued2019-11-01
dc.descriptionIndexación Scopuses
dc.description.abstractWe present two-dimensional ionized gas and stellar kinematics in the inner 1.4 × 1.9 kpc2 of the Seyfert 2 galaxy ESO 153-G20 obtained with the Gemini-South/Gemini multi-object spectrograph integral field unit (GMOS-IFU) at a spatial resolution of ∼250 pc and spectral resolution of 36 kms-1. Strong [O III], Hα, [NII] and [S II] emission lines are detected over the entire field of view. The stellar kinematics trace circular rotation with a projected velocity amplitude of ±96 km s-1, a kinematic major axis in position angle of 11°, and an average velocity dispersion of 123 km s-1. To analyse the gas kinematics, we used aperture spectra, position-velocity diagrams and single/doubleGaussian fits to the emission lines.All lines show two clear kinematic components: a rotating component that follows the stellar kinematics, and a larger-dispersion component, close to the systemic velocity (from which most of the [OIII] emission comes), mainly detected to the south-west. We interpret this second component as gas outflowing at∼400 km s-1 in a compact (300 pc) ionization cone with a half-opening angle ≤40°. The counter-cone is probably obscured behind a dust lane. We estimate a mass outflow rate of 1.1 M yr-1, 200 times larger than the estimated accretion rate on to the supermassive black hole, and a kinetic to radiative power ratio of 1.7 × 10-3. Bar-induced perturbations probably explain the remaining disturbances observed in the velocity field of the rotating gas component.es
dc.identifier.citationMonthly Notices of the Royal Astronomical Society Volume 489, Issue 3, Pages 4111 - 4124 1 November 2019es
dc.identifier.doi10.1093/mnras/stz2333en
dc.identifier.issn00358711
dc.identifier.urihttps://repositorio.unab.cl/xmlui/handle/ria/51743
dc.language.isoenes
dc.publisherMonthly Notices of the Royal Astronomical Societyes
dc.relation.urihttps://creativecommons.org/licenses/by/4.0/en
dc.rights.licenseAttribution 4.0 International (CC BY 4.0)en
dc.subjectGalaxies: Activees
dc.subjectGalaxies: Individual: ESO 153-G20es
dc.subjectGalaxies: Kinematics and dynamicses
dc.subjectGalaxies: Nucleies
dc.subjectGalaxies: Seyfertes
dc.titleOutflowing gas in a compact ionization cone in the Seyfert 2 galaxy ESO 153-G20es
dc.typeArtículoes
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