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dc.contributor.authorCarpes, Hekatelyne Prestespt_BR
dc.contributor.authorRiffel, Rogemar Andrépt_BR
dc.contributor.authorStorchi-Bergmann, Thaisapt_BR
dc.contributor.authorKharb, Preetipt_BR
dc.contributor.authorRobinson, Andrewpt_BR
dc.contributor.authorSales, Dinalva Aires dept_BR
dc.contributor.authorCassanta, Claudia Marzaript_BR
dc.date.accessioned2021-02-09T04:08:02Zpt_BR
dc.date.issued2020pt_BR
dc.identifier.issn0035-8711pt_BR
dc.identifier.urihttp://hdl.handle.net/10183/217838pt_BR
dc.description.abstractWe present Gemini Multi-Object Spectrograph (GMOS) Integral Field Unit (IFU), Hubble Space Telescope (HST), and Very Large Array (VLA) observations of the OH Megamaser (OHM) galaxy IRAS 11506−3851. The HST images reveal an isolated spiral galaxy and the combination with the GMOS-IFU flux distributions and VLA data allow us to identify a partial ring of star-forming regions surrounding the nucleus with a radius of ≈ 500 pc. While this ring shows starburst excitation and low velocity dispersion, the region internal to the ring shows higher excitation and velocity dispersion values, with values increasing towards its borders at ≈ 240 pc from the nucleus, resembling a projected bubble. The enhanced excitation and velocity dispersion of this bubble surrounds a 8.5-GHz radio emission structure, supporting its origin in a faint active galactic nucleus (AGN) that is mostly shocking the surrounding gas via a plasma ejection seen in radio at the present stage. This is the fourth of the 5 OHM galaxies we have studied so far (from our sample of 15 OHM) for which GMOS-IFU data indicate the presence of a previously unknown faint AGN at the nucleus, consistent with the hypothesis that OHM galaxies harbour recently triggered AGN.en
dc.format.mimetypeapplication/pdfpt_BR
dc.language.isoengpt_BR
dc.relation.ispartofMonthly notices of the royal astronomical society. Oxford. Vol. 498, no. 2 (Oct. 2020), p. 2632–2644pt_BR
dc.rightsOpen Accessen
dc.subjectGalaxies: activeen
dc.subjectGaláxias ativaspt_BR
dc.subjectGalaxies: ISMen
dc.subjectMeio interestelarpt_BR
dc.subjectGalaxies: kinematics and dynamicsen
dc.subjectCinemática estelarpt_BR
dc.titleThe OH Megamaser galaxy IRAS11506−3851 : an AGN and star formation revealed by multiwavelength observationspt_BR
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb001120551pt_BR
dc.type.originEstrangeiropt_BR


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