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dc.contributor.authorSouza, José Henrique Costa Pintopt_BR
dc.contributor.authorRiffel, Rogemar Andrépt_BR
dc.contributor.authorDors Júnior, Oli Luizpt_BR
dc.contributor.authorRiffel, Rogériopt_BR
dc.contributor.authorPoppe, Paulo César da Rochapt_BR
dc.date.accessioned2024-09-06T06:39:20Zpt_BR
dc.date.issued2024pt_BR
dc.identifier.issn0035-8711pt_BR
dc.identifier.urihttp://hdl.handle.net/10183/278513pt_BR
dc.description.abstractWe use VLT-MUSE integral field unit data to study the ionized gas physical properties and kinematics as well as the stellar populations of the Seyfert 2 galaxy NGC 232 as an opportunity to understand the role of AGN feedback on star formation. The data cover a field of view of 60 × 60 arcsec2 at a spatial resolution of ∼850 pc. The emission-line profiles have been fitted with two Gaussian components, one associated to the emission of the gas in the disc and the other due to a bi-conical outflow. The spectral synthesis suggests a predominantly old stellar population with ages exceeding 2 Gyr, with the largest contributions seen at the nucleus and decreasing outwards. Meanwhile, the young and intermediate age stellar populations exhibit a positive gradient with increasing radius and a circum-nuclear star-forming ring with radius of ∼0.5 kpc traced by stars younger than 20 Myr, is observed. This, along with the fact that AGN and SF dominated regions present similar gaseous oxygen abundances, suggests a shared reservoir feeding both star formation and the AGN. We have estimated a maximum outflow rate in ionized gas of ∼1.26 M yr−1 observed at a distance of ∼560 pc from the nucleus. The corresponding maximum kinetic power of the outflow is ∼3.4 × 1041 erg s−1. This released energy could be sufficient to suppress star formation within the ionization cone, as evidenced by the lower star formation rates observed in this region.en
dc.format.mimetypeapplication/pdfpt_BR
dc.language.isoengpt_BR
dc.relation.ispartofMonthly notices of the royal astronomical society. Oxford. Vol. 527, no. 3 (Jan. 2024), p. 9192–9205pt_BR
dc.rightsOpen Accessen
dc.subjectGalaxies : Activeen
dc.subjectGaláxias ativaspt_BR
dc.subjectGalaxies : ISMen
dc.subjectPopulacoes estelarespt_BR
dc.subjectNucleo galaticopt_BR
dc.subjectGalaxies : Jetsen
dc.subjectFormacao de estrelaspt_BR
dc.subjectGalaxies : Kinematics and dynamicsen
dc.titleAGN feedback and star formation in the peculiar galaxy NGC 232 : insights from VLT-MUSE observationspt_BR
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb001198347pt_BR
dc.type.originEstrangeiropt_BR


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