Chemical abundance of the LINER galaxy UGC 4805 with SDSS-IV MaNGA

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dc.contributor.authorKrabbe, Angela Cristina
dc.contributor.authorOliveira Junior, Celso Benedito de
dc.contributor.authorZinchenko, Igor A.
dc.contributor.authorHernández-Jiménez, Jose Andres
dc.contributor.authorDors Júnior, Oli Luiz
dc.contributor.authorHägele, Guilhermo Frederico
dc.contributor.authorCardaci, Mónica Viviana
dc.contributor.authorTelles, Nayra Regina
dc.date.accessioned2025-04-04T14:12:27Z
dc.date.available2025-04-04T14:12:27Z
dc.date.issued22021
dc.description.abstractChemical abundance determinations in Low-Ionization Nuclear Emission-line Regions (LINERs) are especially complex and uncertain because the nature of the ionizing source of this kind of object is unknown. In this work, we study the oxygen abundance in relation to the hydrogen abundance (O/H) of the gas phase of the UGC 4805 LINER nucleus. Optical spectroscopic data from the Mapping Nearby Galaxies survey was employed to derive the O/H abundance of the UGC 4805 nucleus based on the extrapolation of the disc abundance gradient, on calibrations between O/H abundance and strong emission-lines for active galactic nuclei (AGNs) as well as on photoionization models built with the Cloudy code, assuming gas accretion into a black hole (AGN) and post-asymptotic giant branch (p-AGB) stars with different effective temperatures. We found that abundance gradient extrapolations, AGN calibrations, AGN, and p-AGB photoionization models produce similar O/H values for the UGC 4805 nucleus and similar ionization parameter values. The study demonstrated that the methods used to estimate the O/H abundance using nuclear emission-line ratios produce reliable results, which are in agreement with the O/H values obtained from the independent method of galactic metallicity gradient extrapolation. Finally, the results from the WHAN diagram combined with the fact that the high excitation level of the gas has to be maintained at kpc scales, we suggest that the main ionizing source of the UGC 4805 nucleus probably has a stellar origin rather than an AGN.
dc.description.physical16 p.
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.uriFAPESP (2019/11934-0)
dc.format.mimetypePDF
dc.identifier.affiliationUniversidade do Vale do Paraíba
dc.identifier.affiliationLudwig-Maximilians-Universität
dc.identifier.affiliationUniversidad Andrés Bello
dc.identifier.affiliationUniversidad Nacional de La Plata
dc.identifier.bibliographicCitationKRABBE, Angela Cristina et al. Chemical abundance of the LINER galaxy UGC 4805 with SDSS-IV MaNGA. Monthly Notices of the Royal Astronomical Society, v. 505, n. 2, p. 2087-2102, 2021. Disponível em:
dc.identifier.doi10.1093/mnras/stab1346
dc.identifier.urihttps://repositorio.univap.br/handle/123456789/801
dc.language.isoen_US
dc.publisherRoyal Astronomical Society
dc.rights.holderMonthly Notices of the Royal Astronomical Society
dc.subject.keywordISM: abundances
dc.subject.keywordGalaxies: abundances
dc.subject.keywordGalaxies: nuclei
dc.titleChemical abundance of the LINER galaxy UGC 4805 with SDSS-IV MaNGA
dc.typeArtigos de Periódicos

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