Optical and IR emission of a sample of IRAS galaxies

Detalhes bibliográficos
Autor(a) principal: Lipari, Sebastian
Data de Publicação: 1991
Outros Autores: Bonatto, Charles Jose, Pastoriza, Miriani Griselda
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRGS
Texto Completo: http://hdl.handle.net/10183/88381
Resumo: We report on observations of 12 southem warm IRAS galaxies. Using absolute fluxes of lines in the optical region in connection with diagnostic diagrams, we have classified these galaxies in terms of the principal excitation mechanisms and have found that ali the galaxies are Seyferts. Far-infrared colours also are used to analyse these objects. Good correlations between the luminosity at 25 and 60 μm and the Hα luminosity are found. The far-infrared luminosity of Seyfert galaxies seems to depend more strongly on the number of ionizing photons than on the amount of dust.
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spelling Lipari, SebastianBonatto, Charles JosePastoriza, Miriani Griselda2014-03-13T01:50:42Z19910035-8711http://hdl.handle.net/10183/88381000055475We report on observations of 12 southem warm IRAS galaxies. Using absolute fluxes of lines in the optical region in connection with diagnostic diagrams, we have classified these galaxies in terms of the principal excitation mechanisms and have found that ali the galaxies are Seyferts. Far-infrared colours also are used to analyse these objects. Good correlations between the luminosity at 25 and 60 μm and the Hα luminosity are found. The far-infrared luminosity of Seyfert galaxies seems to depend more strongly on the number of ionizing photons than on the amount of dust.application/pdfengMonthly notices of the Royal Astronomical Society. London. Vol. 253, (Nov. 1991), p. 19-26AstrofísicaGalaxias seyfertEspectros infravermelhosOptical and IR emission of a sample of IRAS galaxiesEstrangeiroinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSORIGINAL000055475.pdf000055475.pdfTexto completo (inglês)application/pdf206438http://www.lume.ufrgs.br/bitstream/10183/88381/1/000055475.pdfa34281aee12e5d04bd28602cfda7d49aMD51TEXT000055475.pdf.txt000055475.pdf.txtExtracted Texttext/plain176http://www.lume.ufrgs.br/bitstream/10183/88381/2/000055475.pdf.txt1e3e17ae53eed453fc9561c7ef2fe1f8MD52THUMBNAIL000055475.pdf.jpg000055475.pdf.jpgGenerated Thumbnailimage/jpeg1980http://www.lume.ufrgs.br/bitstream/10183/88381/3/000055475.pdf.jpgea691258be79740fa0eac5f13028caf1MD5310183/883812023-07-15 03:27:32.336515oai:www.lume.ufrgs.br:10183/88381Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2023-07-15T06:27:32Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.pt_BR.fl_str_mv Optical and IR emission of a sample of IRAS galaxies
title Optical and IR emission of a sample of IRAS galaxies
spellingShingle Optical and IR emission of a sample of IRAS galaxies
Lipari, Sebastian
Astrofísica
Galaxias seyfert
Espectros infravermelhos
title_short Optical and IR emission of a sample of IRAS galaxies
title_full Optical and IR emission of a sample of IRAS galaxies
title_fullStr Optical and IR emission of a sample of IRAS galaxies
title_full_unstemmed Optical and IR emission of a sample of IRAS galaxies
title_sort Optical and IR emission of a sample of IRAS galaxies
author Lipari, Sebastian
author_facet Lipari, Sebastian
Bonatto, Charles Jose
Pastoriza, Miriani Griselda
author_role author
author2 Bonatto, Charles Jose
Pastoriza, Miriani Griselda
author2_role author
author
dc.contributor.author.fl_str_mv Lipari, Sebastian
Bonatto, Charles Jose
Pastoriza, Miriani Griselda
dc.subject.por.fl_str_mv Astrofísica
Galaxias seyfert
Espectros infravermelhos
topic Astrofísica
Galaxias seyfert
Espectros infravermelhos
description We report on observations of 12 southem warm IRAS galaxies. Using absolute fluxes of lines in the optical region in connection with diagnostic diagrams, we have classified these galaxies in terms of the principal excitation mechanisms and have found that ali the galaxies are Seyferts. Far-infrared colours also are used to analyse these objects. Good correlations between the luminosity at 25 and 60 μm and the Hα luminosity are found. The far-infrared luminosity of Seyfert galaxies seems to depend more strongly on the number of ionizing photons than on the amount of dust.
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dc.date.issued.fl_str_mv 1991
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dc.language.iso.fl_str_mv eng
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dc.relation.ispartof.pt_BR.fl_str_mv Monthly notices of the Royal Astronomical Society. London. Vol. 253, (Nov. 1991), p. 19-26
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