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dc.contributor.authorPereira-Santaella, Miguelpt_BR
dc.contributor.authorGonzález-Alfonso, Eduardopt_BR
dc.contributor.authorUsero, Antoniopt_BR
dc.contributor.authorGarcia-Burillo, Santiagopt_BR
dc.contributor.authorMartín-Pintado, Jesús M.pt_BR
dc.contributor.authorColina, Luispt_BR
dc.contributor.authorAlonso-Herrero, Almudenapt_BR
dc.contributor.authorArribas, Santiagopt_BR
dc.contributor.authorCazzoli, Sarapt_BR
dc.contributor.authorRico Villas, Fernandopt_BR
dc.contributor.authorRigopoulou, Dimitrapt_BR
dc.contributor.authorStorchi-Bergmann, Thaisapt_BR
dc.date.accessioned2018-08-18T03:01:31Zpt_BR
dc.date.issued2017pt_BR
dc.identifier.issn0004-6361pt_BR
dc.identifier.urihttp://hdl.handle.net/10183/181151pt_BR
dc.description.abstractWe present the first detection of the ortho-H2O 423􀀀330 transition at 448 GHz in space. We observed this transition in the local (z = 0:010) luminous infrared (IR) galaxy ESO 320-G030 (IRAS F11506-3851) using the Atacama Large Millimeter/submillimeter Array (ALMA). The water 423􀀀330 emission, which originates in the highly obscured nucleus of this galaxy, is spatially resolved over a region of 65 pc in diameter and shows a regular rotation pattern compatible with the global molecular and ionized gas kinematics. The line profile is symmetric and well fitted by a Gaussian with an integrated flux of 37.0 0.7 Jy km s􀀀1. Models predict this water transition as a potential collisionally excited maser transition. On the contrary, in this galaxy, we find that the 423􀀀330 emission is primarily excited by the intense far-IR radiation field present in its nucleus. According to our modeling, this transition is a probe of deeply buried galaxy nuclei thanks to the high dust optical depths ( 100 m > 1, NH > 1024 cm􀀀2) required to e ciently excite it.en
dc.format.mimetypeapplication/pdfpt_BR
dc.language.isoengpt_BR
dc.relation.ispartofAstronomy and astrophysics. Les Ulis. Vol. 601 (May 2017), L3, 4 p.pt_BR
dc.rightsOpen Accessen
dc.subjectGalaxies: ISMen
dc.subjectInfravermelhopt_BR
dc.subjectNucleo galaticopt_BR
dc.subjectGalaxies: nucleien
dc.subjectInfrared: galaxiesen
dc.subjectÁguapt_BR
dc.subjectMeio interestelarpt_BR
dc.subjectISM: moleculesen
dc.titleFirst detection of the 448 GHz H2O transition in spacept_BR
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb001063462pt_BR
dc.type.originEstrangeiropt_BR


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