The role of host galaxy for the environmental dependence of active nuclei in local galaxies
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , , , , , , , , , , , , , , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/168975 |
Resumo: | We discuss the environment of local hard X-ray selected active galaxies, with reference to two independent group catalogues. We find that the fraction of these AGN in S0 host galaxies decreases strongly as a function of galaxy group size (halo mass) – which contrasts with the increasing fraction of galaxies of S0 type in denser environments. However, there is no evidence for an environmental dependence of AGN in spiral galaxies. Because most AGN are found in spiral galaxies, this dilutes the signature of environmental dependence for the population as a whole. We argue that the differing results for AGN in disc-dominated and bulge-dominated galaxies are related to the source of the gas fuelling the AGN, and so may also impact the luminosity function, duty cycle and obscuration. We find that there is a significant difference in the luminosity function for AGN in spiral and S0 galaxies, and tentative evidence for some difference in the fraction of obscured AGN. |
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Davies, Richard I.Hicks, Erin K. S.Erwin, PeterBurtscher, LeonardContursi, AlessandraGenzel, ReinhardJanssen, AnnemiekeKoss, MichaelLin, Ming-YiLutz, DieterMaciejewski, Witold B.Muller-Sanchez, FranciscoOrban de Xivry, GillesRicci, ClaudioRiffel, RogérioRiffel, Rogemar AndréRosario, DavidSchartmann, MarcMüller, Allan SchnorrShimizu, TaroSternberg, AmielSturm, EckhardStorchi-Bergmann, ThaisaTacconi, Linda J.Veilleux, Sylvain2017-09-28T02:27:55Z20170035-8711http://hdl.handle.net/10183/168975001027105We discuss the environment of local hard X-ray selected active galaxies, with reference to two independent group catalogues. We find that the fraction of these AGN in S0 host galaxies decreases strongly as a function of galaxy group size (halo mass) – which contrasts with the increasing fraction of galaxies of S0 type in denser environments. However, there is no evidence for an environmental dependence of AGN in spiral galaxies. Because most AGN are found in spiral galaxies, this dilutes the signature of environmental dependence for the population as a whole. We argue that the differing results for AGN in disc-dominated and bulge-dominated galaxies are related to the source of the gas fuelling the AGN, and so may also impact the luminosity function, duty cycle and obscuration. We find that there is a significant difference in the luminosity function for AGN in spiral and S0 galaxies, and tentative evidence for some difference in the fraction of obscured AGN.application/pdfengMonthly notices of the Royal Astronomical Society. Oxford. Vol. 466, no. 4 (May 2017), p. 4917–4927Galáxias ativasNucleo galaticoGalaxias seyfertBuracos negrosGalaxies: activeGalaxies: haloesGalaxies: luminosity function, mass functionGalaxies: nucleiGalaxies: SeyfertThe role of host galaxy for the environmental dependence of active nuclei in local 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:UFRGSORIGINAL001027105.pdf001027105.pdfTexto completo (inglês)application/pdf812166http://www.lume.ufrgs.br/bitstream/10183/168975/1/001027105.pdff945501843f728f25d642c506bbb20ceMD51TEXT001027105.pdf.txt001027105.pdf.txtExtracted Texttext/plain58216http://www.lume.ufrgs.br/bitstream/10183/168975/2/001027105.pdf.txte1a8b11041e09fd883030e70a8114c38MD52THUMBNAIL001027105.pdf.jpg001027105.pdf.jpgGenerated Thumbnailimage/jpeg1946http://www.lume.ufrgs.br/bitstream/10183/168975/3/001027105.pdf.jpgae9a40082aefd87902f20ba257f461abMD5310183/1689752023-07-20 03:35:22.352872oai:www.lume.ufrgs.br:10183/168975Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2023-07-20T06:35:22Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
The role of host galaxy for the environmental dependence of active nuclei in local galaxies |
title |
The role of host galaxy for the environmental dependence of active nuclei in local galaxies |
spellingShingle |
The role of host galaxy for the environmental dependence of active nuclei in local galaxies Davies, Richard I. Galáxias ativas Nucleo galatico Galaxias seyfert Buracos negros Galaxies: active Galaxies: haloes Galaxies: luminosity function, mass function Galaxies: nuclei Galaxies: Seyfert |
title_short |
The role of host galaxy for the environmental dependence of active nuclei in local galaxies |
title_full |
The role of host galaxy for the environmental dependence of active nuclei in local galaxies |
title_fullStr |
The role of host galaxy for the environmental dependence of active nuclei in local galaxies |
title_full_unstemmed |
The role of host galaxy for the environmental dependence of active nuclei in local galaxies |
title_sort |
The role of host galaxy for the environmental dependence of active nuclei in local galaxies |
author |
Davies, Richard I. |
author_facet |
Davies, Richard I. Hicks, Erin K. S. Erwin, Peter Burtscher, Leonard Contursi, Alessandra Genzel, Reinhard Janssen, Annemieke Koss, Michael Lin, Ming-Yi Lutz, Dieter Maciejewski, Witold B. Muller-Sanchez, Francisco Orban de Xivry, Gilles Ricci, Claudio Riffel, Rogério Riffel, Rogemar André Rosario, David Schartmann, Marc Müller, Allan Schnorr Shimizu, Taro Sternberg, Amiel Sturm, Eckhard Storchi-Bergmann, Thaisa Tacconi, Linda J. Veilleux, Sylvain |
author_role |
author |
author2 |
Hicks, Erin K. S. Erwin, Peter Burtscher, Leonard Contursi, Alessandra Genzel, Reinhard Janssen, Annemieke Koss, Michael Lin, Ming-Yi Lutz, Dieter Maciejewski, Witold B. Muller-Sanchez, Francisco Orban de Xivry, Gilles Ricci, Claudio Riffel, Rogério Riffel, Rogemar André Rosario, David Schartmann, Marc Müller, Allan Schnorr Shimizu, Taro Sternberg, Amiel Sturm, Eckhard Storchi-Bergmann, Thaisa Tacconi, Linda J. Veilleux, Sylvain |
author2_role |
author author author author author author author author author author author author author author author author author author author author author author author author |
dc.contributor.author.fl_str_mv |
Davies, Richard I. Hicks, Erin K. S. Erwin, Peter Burtscher, Leonard Contursi, Alessandra Genzel, Reinhard Janssen, Annemieke Koss, Michael Lin, Ming-Yi Lutz, Dieter Maciejewski, Witold B. Muller-Sanchez, Francisco Orban de Xivry, Gilles Ricci, Claudio Riffel, Rogério Riffel, Rogemar André Rosario, David Schartmann, Marc Müller, Allan Schnorr Shimizu, Taro Sternberg, Amiel Sturm, Eckhard Storchi-Bergmann, Thaisa Tacconi, Linda J. Veilleux, Sylvain |
dc.subject.por.fl_str_mv |
Galáxias ativas Nucleo galatico Galaxias seyfert Buracos negros |
topic |
Galáxias ativas Nucleo galatico Galaxias seyfert Buracos negros Galaxies: active Galaxies: haloes Galaxies: luminosity function, mass function Galaxies: nuclei Galaxies: Seyfert |
dc.subject.eng.fl_str_mv |
Galaxies: active Galaxies: haloes Galaxies: luminosity function, mass function Galaxies: nuclei Galaxies: Seyfert |
description |
We discuss the environment of local hard X-ray selected active galaxies, with reference to two independent group catalogues. We find that the fraction of these AGN in S0 host galaxies decreases strongly as a function of galaxy group size (halo mass) – which contrasts with the increasing fraction of galaxies of S0 type in denser environments. However, there is no evidence for an environmental dependence of AGN in spiral galaxies. Because most AGN are found in spiral galaxies, this dilutes the signature of environmental dependence for the population as a whole. We argue that the differing results for AGN in disc-dominated and bulge-dominated galaxies are related to the source of the gas fuelling the AGN, and so may also impact the luminosity function, duty cycle and obscuration. We find that there is a significant difference in the luminosity function for AGN in spiral and S0 galaxies, and tentative evidence for some difference in the fraction of obscured AGN. |
publishDate |
2017 |
dc.date.accessioned.fl_str_mv |
2017-09-28T02:27:55Z |
dc.date.issued.fl_str_mv |
2017 |
dc.type.driver.fl_str_mv |
Estrangeiro info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10183/168975 |
dc.identifier.issn.pt_BR.fl_str_mv |
0035-8711 |
dc.identifier.nrb.pt_BR.fl_str_mv |
001027105 |
identifier_str_mv |
0035-8711 001027105 |
url |
http://hdl.handle.net/10183/168975 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Monthly notices of the Royal Astronomical Society. Oxford. Vol. 466, no. 4 (May 2017), p. 4917–4927 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
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application/pdf |
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