Electron temperature fluctuations in Seyfert galaxies

Página do item simplificado
dc.contributor.authorRiffel, Rogemar André
dc.contributor.authorDors Júnior, Oli Luiz
dc.contributor.authorKrabbe, Angela Cristina
dc.contributor.authorEsteban, César
dc.date.accessioned2025-04-04T17:32:11Z
dc.date.available2025-04-04T17:32:11Z
dc.date.issued22021
dc.description.abstractWe use Gemini GMOS-IFU observations of three luminous nearby Seyfert galaxies (Mrk 79, Mrk 348, and Mrk 607) to estimate the electron temperature (Te) fluctuations in the inner 0.4–1.1 kpc region of these galaxies. Based on Te determinations throug the [O III]λ5007/λ4363 emission line ratio of each spaxel, temperature variations are quantified by computing the integrated value of the temperature fluctuation parameter (t 2) projected in the plane of the sky t 2 A, for the first time in active galactic nuclei (AGNs). We find t 2 A values of 0.135, 0.039, and 0.015 for Mrk 79, Mrk 348, and Mrk 607, respectively, which are of the same order or larger than the maximum values reported in star-forming regions and planetary nebulae. Taking into account that t 2 A should be considered a lower limit of the total t 2 in the nebular volume, the results suggest that the impact of such fluctuations on chemical abundance determinations can be important in some AGNs.
dc.description.physical5 p.
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.format.mimetypePDF
dc.identifier.affiliationUniversidade Federal de Santa Maria
dc.identifier.affiliationUniversidade do Vale do Paraíba
dc.identifier.affiliationInstituto de Astrofísica de Canarias
dc.identifier.affiliationUniversidad de La Laguna
dc.identifier.bibliographicCitationRIFFEL, Rogemar André; DORS JUNIOR, Oli Luiz; KRABBE, Angela Cristina. Electron temperature fluctuations in Seyfert galaxies. Monthly Notices of the Royal Astronomical Society: Letters, v. 506, n. 1, p. L11-L15, 2021. Disponível em:
dc.identifier.doi10.1093/mnrasl/slab064
dc.identifier.urihttps://repositorio.univap.br/handle/123456789/812
dc.language.isoen_US
dc.publisherRoyal Astronomical Society
dc.rights.holderMonthly Notices of the Royal Astronomical Society: Letters
dc.subject.keywordGalaxies: abundances
dc.subject.keywordGalaxies: active
dc.subject.keywordGalaxies: Seyfert
dc.titleElectron temperature fluctuations in Seyfert galaxies
dc.typeArtigos de Periódicos

Arquivos

Pacote Original
Agora exibindo 1 - 1 de 1
Imagem de Miniatura
Nome:
Electron temperature fluctuations in Seyfert galaxies.pdf
Tamanho:
1.47 MB
Formato:
Adobe Portable Document Format
Baixar
Licença do Pacote
Agora exibindo 1 - 1 de 1
Nenhuma Miniatura disponível
Nome:
license.txt
Tamanho:
1.71 KB
Formato:
Item-specific license agreed upon to submission
Descrição:
Baixar

Coleções

Produção acadêmica-PPGFA