A panchromatic spatially resolved study of the inner 500 pc of NGC 1052 : II. Gas excitation and kinematics
dc.contributor.author | Hahn, Luis Gabriel Dahmer | pt_BR |
dc.contributor.author | Riffel, Rogério | pt_BR |
dc.contributor.author | Ricci, Tiago Vecchi | pt_BR |
dc.contributor.author | Steiner, João Evangelista | pt_BR |
dc.contributor.author | Storchi-Bergmann, Thaisa | pt_BR |
dc.contributor.author | Riffel, Rogemar André | pt_BR |
dc.contributor.author | Menezes, Roberto Bertoldo | pt_BR |
dc.contributor.author | Dametto, Natacha Zanon | pt_BR |
dc.contributor.author | Diniz, Marlon Rodrigo | pt_BR |
dc.contributor.author | Motter, Juliana Cristina | pt_BR |
dc.contributor.author | Dutra, Daniel Ruschel | pt_BR |
dc.date.accessioned | 2019-12-27T04:05:38Z | pt_BR |
dc.date.issued | 2019 | pt_BR |
dc.identifier.issn | 0035-8711 | pt_BR |
dc.identifier.uri | http://hdl.handle.net/10183/203934 | pt_BR |
dc.description.abstract | We map the optical and near-infrared (NIR) emission-line flux distributions and kinematics of the inner 320×535 pc2of the elliptical galaxy NGC 1052. The integral field spectra were obtained with the Gemini Telescope using the GMOS-IFU and NIFS instruments, with angular resolutions of 0.88 and 0.1 arcsec in the optical and NIR, respectively. We detect five kinematic components: (1) and (2) two spatially unresolved components: a broad-line region visible inHα, with a full width at half-maximum (FWHM) of~3200 km s−1, and an intermediate broad component seen in the [OIII]λλ4959,5007 doublet; (3) an extended intermediate-widthcomponent with 280 km s−1<FWHM<450 km s−1and centroid velocities up to 400 km s−1,which dominates the flux in our data, attributed either to a bipolar outflow related to the jets,rotation in an eccentric disc or to a combination of a disc and large-scale gas bubbles; (4)and (5) two narrow (FWHM<150 km s−1) components, one visible in [OIII], and anothervisible in the other emission lines, extending beyond the field of view of our data, which is attributed to large-scale shocks. Our results suggest that the ionization within the observed field of view cannot be explained by a single mechanism, with photoionization being the dominant mechanism in the nucleus with a combination of shocks and photoionization responsible forthe extended ionization. | en |
dc.format.mimetype | application/pdf | pt_BR |
dc.language.iso | eng | pt_BR |
dc.relation.ispartof | Monthly notices of the Royal Astronomical Society. Oxford. Vol. 489, no. 4 (Nov. 2019), p. 5653–5668 | pt_BR |
dc.rights | Open Access | en |
dc.subject | Fotoionizacao | pt_BR |
dc.subject | Galaxies: individual: NGC 1052 | en |
dc.subject | Galaxias elipticas | pt_BR |
dc.subject | Galaxies: jets | en |
dc.subject | Galaxies: nuclei | en |
dc.subject | Galáxia NGC 1052 | pt_BR |
dc.subject | Nucleo galatico | pt_BR |
dc.title | A panchromatic spatially resolved study of the inner 500 pc of NGC 1052 : II. Gas excitation and kinematics | pt_BR |
dc.type | Artigo de periódico | pt_BR |
dc.identifier.nrb | 001106125 | pt_BR |
dc.type.origin | Estrangeiro | pt_BR |
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