Mostrar el registro sencillo del ítem

dc.contributor.authorSchönell Júnior, Astor Joãopt_BR
dc.contributor.authorStorchi-Bergmann, Thaisapt_BR
dc.contributor.authorRiffel, Rogemar Andrépt_BR
dc.contributor.authorRiffel, Rogériopt_BR
dc.contributor.authorBianchin, Marinapt_BR
dc.contributor.authorHahn, Luis Gabriel Dahmerpt_BR
dc.contributor.authorDiniz, Marlon Rodrigopt_BR
dc.contributor.authorDametto, Natacha Zanonpt_BR
dc.date.accessioned2019-08-29T02:34:41Zpt_BR
dc.date.issued2019pt_BR
dc.identifier.issn0035-8711pt_BR
dc.identifier.urihttp://hdl.handle.net/10183/198515pt_BR
dc.description.abstractWe have used the Gemini Near-Infrared Integral Field Spectrograph in the J and K bands to map the distribution, excitation, and kinematics of the ionized H ii and warm molecular gas H2, in the inner few 100 pc of six nearby active galaxies: NGC 788, Mrk 607, NGC 3227, NGC 3516, NGC 5506, NGC 5899. For most galaxies, this is the first time that such maps have been obtained. The ionized and H2 gas show distinct kinematics: while the H2 gas is mostly rotating in the galaxy plane with low velocity dispersion (σ), the ionized gas usually shows signatures of outflows associated with higher σ values, most clearly seen in the [Fe ii] emission line. These two gas species also present distinct flux distributions: the H2 is more uniformly spread over the whole galaxy plane, while the ionized gas is more concentrated around the nucleus and/or collimated along the ionization axis of its active galactic nucleus (AGN), presenting a steeper gradient in the average surface mass density profile than the H2 gas. The total H ii masses cover the range 2×105--2×107 M⊙, with surface mass densities in the range 3–150 M⊙ pc−2, while for the warm H2 the values are 103–4 times lower. We estimate that the available gas reservoir is at least ≈ 100 times more massive than needed to power the AGN. If this gas forms new stars the star formation rates, obtained from the Kennicutt–Schmidt scaling relation, are in the range 1–260 × 10−3 M⊙ yr−1. But the gas will also – at least in part – be ejected as the observed outflowsen
dc.format.mimetypeapplication/pdfpt_BR
dc.language.isoengpt_BR
dc.relation.ispartofMonthly notices of the royal astronomical society. Oxford. Vol. 485, no. 2 (May 2019), p. 2054-2070pt_BR
dc.rightsOpen Accessen
dc.subjectAnãs brancaspt_BR
dc.subjectgalaxies: activeen
dc.subjectGaláxias ativaspt_BR
dc.subjectGalaxies: evolutionen
dc.subjectGalaxies: kinematics and dynamicsen
dc.subjectEvolucao galaticapt_BR
dc.subjectGalaxies: nucleien
dc.subjectGas ionizadopt_BR
dc.subjectGalaxies: Seyferten
dc.subjectFormacao de estrelaspt_BR
dc.subjectGalaxies: star formationen
dc.titleGemini NIFS survey of feeding and feedback in nearby active galaxies III. Ionized versus warm molecular gas masses and distributionspt_BR
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb001098948pt_BR
dc.type.originEstrangeiropt_BR


Ficheros en el ítem

Thumbnail
   

Este ítem está licenciado en la Creative Commons License

Mostrar el registro sencillo del ítem